diff --git a/alicloud/resource_alicloud_ess_scaling_configuration.go b/alicloud/resource_alicloud_ess_scaling_configuration.go
index 4a896516fd5a..7ca6ce9f428c 100644
--- a/alicloud/resource_alicloud_ess_scaling_configuration.go
+++ b/alicloud/resource_alicloud_ess_scaling_configuration.go
@@ -129,10 +129,20 @@ func resourceAlicloudEssScalingConfiguration() *schema.Resource {
 				}, false),
 			},
 			"system_disk_category": {
-				Type:         schema.TypeString,
-				Optional:     true,
-				Default:      DiskCloudEfficiency,
-				ValidateFunc: StringInSlice([]string{"cloud", "ephemeral_ssd", "cloud_ssd", "cloud_essd", "cloud_efficiency"}, false),
+				Type:          schema.TypeString,
+				Optional:      true,
+				Computed:      true,
+				ValidateFunc:  StringInSlice([]string{"cloud", "ephemeral_ssd", "cloud_ssd", "cloud_essd", "cloud_efficiency"}, false),
+				ConflictsWith: []string{"system_disk_categories"},
+			},
+			"system_disk_categories": {
+				Type:          schema.TypeSet,
+				Optional:      true,
+				Computed:      true,
+				Elem:          &schema.Schema{Type: schema.TypeString},
+				MinItems:      1,
+				MaxItems:      4,
+				ConflictsWith: []string{"system_disk_category"},
 			},
 			"system_disk_size": {
 				Type:         schema.TypeInt,
@@ -472,6 +482,14 @@ func resourceAliyunEssScalingConfigurationCreate(d *schema.ResourceData, meta in
 		request["SystemDisk.Category"] = d.Get("system_disk_category")
 	}
 
+	if v, ok := d.GetOk("system_disk_categories"); ok {
+		count := 1
+		for _, value := range v.(*schema.Set).List() {
+			request[fmt.Sprintf("SystemDiskCategories.%d", count)] = value
+			count++
+		}
+	}
+
 	if v := d.Get("internet_max_bandwidth_in").(int); v != 0 {
 		request["InternetMaxBandwidthIn"] = d.Get("internet_max_bandwidth_in")
 	}
@@ -732,6 +750,17 @@ func modifyEssScalingConfiguration(d *schema.ResourceData, meta interface{}) err
 		update = true
 	}
 
+	if d.HasChange("system_disk_categories") {
+		if v, ok := d.GetOk("system_disk_categories"); ok {
+			count := 1
+			for _, value := range v.(*schema.Set).List() {
+				request[fmt.Sprintf("SystemDiskCategories.%d", count)] = value
+				count++
+			}
+		}
+		update = true
+	}
+
 	if d.HasChange("internet_max_bandwidth_out") {
 		request["InternetMaxBandwidthOut"] = d.Get("internet_max_bandwidth_out")
 		update = true
@@ -1065,12 +1094,21 @@ func resourceAliyunEssScalingConfigurationRead(d *schema.ResourceData, meta inte
 		return WrapError(err)
 	}
 
+	var systemDiskCategories []string
+	if response["SystemDiskCategories"] != nil && len(response["SystemDiskCategories"].(map[string]interface{})["SystemDiskCategory"].([]interface{})) > 0 {
+		for _, v := range response["SystemDiskCategories"].(map[string]interface{})["SystemDiskCategory"].([]interface{}) {
+			systemDiskCategories = append(systemDiskCategories, v.(string))
+		}
+	}
+
 	d.Set("scaling_group_id", response["ScalingGroupId"])
 	d.Set("image_id", response["ImageId"])
 	d.Set("image_name", response["ImageName"])
 	d.Set("scaling_configuration_name", response["ScalingConfigurationName"])
 	d.Set("internet_charge_type", response["InternetChargeType"])
 	d.Set("system_disk_category", response["SystemDiskCategory"])
+	d.Set("system_disk_categories", systemDiskCategories)
+
 	d.Set("internet_max_bandwidth_in", response["InternetMaxBandwidthIn"])
 	d.Set("internet_max_bandwidth_out", response["InternetMaxBandwidthOut"])
 
diff --git a/alicloud/resource_alicloud_ess_scaling_configuration_test.go b/alicloud/resource_alicloud_ess_scaling_configuration_test.go
index 263f68cb86c1..4e5d5a7d7874 100644
--- a/alicloud/resource_alicloud_ess_scaling_configuration_test.go
+++ b/alicloud/resource_alicloud_ess_scaling_configuration_test.go
@@ -43,12 +43,13 @@ func TestAccAliCloudEssScalingConfiguration_override(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_name":        "${data.alicloud_images.default.images.0.name}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
-					"password_inherit":  "true",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_name":           "${data.alicloud_images.default.images.0.name}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"force_delete":         "true",
+					"password_inherit":     "true",
+					"system_disk_category": "cloud_efficiency",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
@@ -111,17 +112,18 @@ func TestAccAliCloudEssScalingConfiguration_other(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_name":        "${data.alicloud_images.default.images.0.name}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
-					"password_inherit":  "true",
-					"active":            "true",
-					"is_outdated":       "false",
-					"substitute":        "false",
-					"enable":            "true",
-					"instance_ids":      []string{},
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_name":           "${data.alicloud_images.default.images.0.name}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
+					"password_inherit":     "true",
+					"active":               "true",
+					"is_outdated":          "false",
+					"substitute":           "false",
+					"enable":               "true",
+					"instance_ids":         []string{},
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
@@ -184,12 +186,13 @@ func TestAccAliCloudEssScalingConfiguration_credit_specification(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_name":        "${data.alicloud_images.default.images.0.name}",
-					"instance_type":     "${data.alicloud_instance_types.t5.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
-					"password_inherit":  "true",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_name":           "${data.alicloud_images.default.images.0.name}",
+					"instance_type":        "${data.alicloud_instance_types.t5.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
+					"password_inherit":     "true",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
@@ -261,11 +264,12 @@ func TestAccAliCloudEssScalingConfiguration_imageName(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_id":          "${data.alicloud_images.default.images.0.id}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_id":             "${data.alicloud_images.default.images.0.id}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{}),
@@ -324,12 +328,13 @@ func TestAccAliCloudEssScalingConfiguration_imageId(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_id":          "${data.alicloud_images.default.images.0.id}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
-					"password_inherit":  "true",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_id":             "${data.alicloud_images.default.images.0.id}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"force_delete":         "true",
+					"system_disk_category": "cloud_efficiency",
+					"password_inherit":     "true",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
@@ -392,12 +397,13 @@ func TestAccAliCloudEssScalingConfiguration_kms(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_name":        "${data.alicloud_images.default.images.0.name}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
-					"password_inherit":  "true",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_name":           "${data.alicloud_images.default.images.0.name}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
+					"password_inherit":     "true",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
@@ -460,11 +466,12 @@ func TestAccAliCloudEssScalingConfiguration_Update(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_name":        "${data.alicloud_images.default.images.0.name}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_name":           "${data.alicloud_images.default.images.0.name}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
 					//"password":          "123-abcABC",
 				}),
 				Check: resource.ComposeTestCheckFunc(
@@ -690,12 +697,12 @@ func TestAccAliCloudEssScalingConfiguration_Update(t *testing.T) {
 					"data_disk": []map[string]string{
 						{
 							"size":     "20",
-							"category": "cloud_ssd",
+							"category": "cloud_efficiency",
 							"name":     "${var.name}",
 						},
 						{
 							"size":        "30",
-							"category":    "cloud_essd",
+							"category":    "cloud_efficiency",
 							"name":        "${var.name}",
 							"description": "${var.name}",
 						},
@@ -724,7 +731,7 @@ func TestAccAliCloudEssScalingConfiguration_Update(t *testing.T) {
 					testAccCheck(map[string]string{
 						"data_disk.#":                      "4",
 						"data_disk.0.size":                 "20",
-						"data_disk.0.category":             "cloud_ssd",
+						"data_disk.0.category":             "cloud_efficiency",
 						"data_disk.0.delete_with_instance": "true",
 						"data_disk.0.encrypted":            "false",
 						"data_disk.0.kms_key_id":           "",
@@ -732,7 +739,7 @@ func TestAccAliCloudEssScalingConfiguration_Update(t *testing.T) {
 						"data_disk.0.description":          "",
 
 						"data_disk.1.size":                 "30",
-						"data_disk.1.category":             "cloud_essd",
+						"data_disk.1.category":             "cloud_efficiency",
 						"data_disk.1.delete_with_instance": "true",
 						"data_disk.1.encrypted":            "false",
 						"data_disk.1.kms_key_id":           "",
@@ -797,11 +804,12 @@ func TestAccAliCloudEssScalingConfiguration_PerformanceLevel(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_id":          "${data.alicloud_images.default.images.0.id}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_id":             "${data.alicloud_images.default.images.0.id}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
@@ -827,11 +835,11 @@ func TestAccAliCloudEssScalingConfiguration_PerformanceLevel(t *testing.T) {
 			},
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"system_disk_category": "cloud_essd",
+					"system_disk_category": "cloud_ssd",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
-						"system_disk_category": "cloud_essd",
+						"system_disk_category": "cloud_ssd",
 					}),
 				),
 			},
@@ -897,7 +905,7 @@ func TestAccAliCloudEssScalingConfiguration_PerformanceLevel(t *testing.T) {
 					"data_disk": []map[string]string{
 						{
 							"size":                 "20",
-							"category":             "cloud_essd",
+							"category":             "cloud_ssd",
 							"delete_with_instance": "false",
 							"encrypted":            "true",
 							"kms_key_id":           "${alicloud_kms_key.key.id}",
@@ -916,7 +924,7 @@ func TestAccAliCloudEssScalingConfiguration_PerformanceLevel(t *testing.T) {
 					testAccCheck(map[string]string{
 						"data_disk.#":                      "2",
 						"data_disk.0.size":                 "20",
-						"data_disk.0.category":             "cloud_essd",
+						"data_disk.0.category":             "cloud_ssd",
 						"data_disk.0.delete_with_instance": "false",
 						"data_disk.0.encrypted":            "true",
 						"data_disk.0.kms_key_id":           CHECKSET,
@@ -971,13 +979,14 @@ func TestAccAliCloudEssScalingConfiguration_Multi(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"count":             "10",
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_id":          "${data.alicloud_images.default.images.0.id}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
-					"password":          "123-abcABC",
+					"count":                "10",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_id":             "${data.alicloud_images.default.images.0.id}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
+					"password":             "123-abcABC",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(nil),
@@ -1102,11 +1111,12 @@ func TestAccAliCloudEssScalingConfiguration_InstancePatternInfo(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_id":          "${data.alicloud_images.default.images.0.id}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_id":             "${data.alicloud_images.default.images.0.id}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
@@ -1132,11 +1142,11 @@ func TestAccAliCloudEssScalingConfiguration_InstancePatternInfo(t *testing.T) {
 			},
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"system_disk_category": "cloud_essd",
+					"system_disk_category": "cloud_ssd",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
-						"system_disk_category": "cloud_essd",
+						"system_disk_category": "cloud_ssd",
 					}),
 				),
 			},
@@ -1192,7 +1202,7 @@ func TestAccAliCloudEssScalingConfiguration_InstancePatternInfo(t *testing.T) {
 					"data_disk": []map[string]string{
 						{
 							"size":                 "20",
-							"category":             "cloud_essd",
+							"category":             "cloud_ssd",
 							"delete_with_instance": "false",
 							"encrypted":            "false",
 							"kms_key_id":           "${alicloud_kms_key.key.id}",
@@ -1211,7 +1221,7 @@ func TestAccAliCloudEssScalingConfiguration_InstancePatternInfo(t *testing.T) {
 					testAccCheck(map[string]string{
 						"data_disk.#":                      "2",
 						"data_disk.0.size":                 "20",
-						"data_disk.0.category":             "cloud_essd",
+						"data_disk.0.category":             "cloud_ssd",
 						"data_disk.0.delete_with_instance": "false",
 						"data_disk.0.encrypted":            "false",
 						"data_disk.0.kms_key_id":           CHECKSET,
@@ -1286,11 +1296,12 @@ func TestAccAliCloudEssScalingConfiguration_InstanceTypeOverride(t *testing.T) {
 		Steps: []resource.TestStep{
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"scaling_group_id":  "${alicloud_ess_scaling_group.default.id}",
-					"image_id":          "${data.alicloud_images.default.images.0.id}",
-					"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
-					"security_group_id": "${alicloud_security_group.default.id}",
-					"force_delete":      "true",
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_id":             "${data.alicloud_images.default.images.0.id}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
@@ -1306,10 +1317,9 @@ func TestAccAliCloudEssScalingConfiguration_InstanceTypeOverride(t *testing.T) {
 			},
 			{
 				Config: testAccConfig(map[string]interface{}{
-					"system_disk_category": "cloud_ssd",
 					"internet_charge_type": "PayByTraffic",
 					"instance_name":        name,
-					"override":             "true",
+					"override":             "false",
 					"instance_type":        REMOVEKEY,
 					"instance_type_override": []map[string]string{{
 						"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
@@ -1318,12 +1328,134 @@ func TestAccAliCloudEssScalingConfiguration_InstanceTypeOverride(t *testing.T) {
 				}),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheck(map[string]string{
-						"system_disk_category":     "cloud_ssd",
 						"internet_charge_type":     "PayByTraffic",
 						"instance_name":            name,
 						"instance_type":            REMOVEKEY,
 						"instance_type_override.#": "1",
-						"override":                 "true",
+						"override":                 "false",
+					}),
+				),
+			},
+		},
+	})
+}
+
+func TestAccAliCloudEssScalingConfiguration_SystemDiskCategories(t *testing.T) {
+	rand := acctest.RandIntRange(1000, 999999)
+	var v ess.ScalingConfiguration
+	resourceId := "alicloud_ess_scaling_configuration.ipi"
+	basicMap := map[string]string{
+		"scaling_group_id":  CHECKSET,
+		"instance_type":     CHECKSET,
+		"security_group_id": CHECKSET,
+		"image_id":          REGEXMATCH + "^ubuntu",
+		"override":          "false",
+	}
+	ra := resourceAttrInit(resourceId, basicMap)
+	rc := resourceCheckInit(resourceId, &v, func() interface{} {
+		return &EssService{testAccProvider.Meta().(*connectivity.AliyunClient)}
+	})
+	rac := resourceAttrCheckInit(rc, ra)
+
+	testAccCheck := rac.resourceAttrMapUpdateSet()
+	name := fmt.Sprintf("tf-testAccEssScalingConfiguration-%d", rand)
+	testAccConfig := resourceTestAccConfigFunc(resourceId, name, resourceEssScalingConfigurationConfigDependence)
+	resource.Test(t, resource.TestCase{
+		PreCheck: func() {
+			testAccPreCheck(t)
+		},
+
+		// module name
+		IDRefreshName: resourceId,
+
+		Providers:    testAccProviders,
+		CheckDestroy: rac.checkResourceDestroy(),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccConfig(map[string]interface{}{
+					"scaling_group_id":     "${alicloud_ess_scaling_group.default.id}",
+					"image_id":             "${data.alicloud_images.default.images.0.id}",
+					"instance_type":        "${data.alicloud_instance_types.default.instance_types.0.id}",
+					"security_group_id":    "${alicloud_security_group.default.id}",
+					"system_disk_category": "cloud_efficiency",
+					"force_delete":         "true",
+				}),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheck(map[string]string{
+						"password_inherit": "false",
+					}),
+				),
+			},
+			{
+				ResourceName:            resourceId,
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{"force_delete", "instance_type", "security_group_id", "kms_encryption_context"},
+			},
+			{
+				Config: testAccConfig(map[string]interface{}{
+					"system_disk_category": "cloud_efficiency",
+					"internet_charge_type": "PayByTraffic",
+					"instance_name":        name,
+					"override":             "false",
+					"instance_type":        REMOVEKEY,
+					"instance_type_override": []map[string]string{{
+						"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
+						"weighted_capacity": "4",
+					}},
+				}),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheck(map[string]string{
+						"system_disk_category":     "cloud_efficiency",
+						"internet_charge_type":     "PayByTraffic",
+						"instance_name":            name,
+						"instance_type":            REMOVEKEY,
+						"instance_type_override.#": "1",
+						"override":                 "false",
+					}),
+				),
+			},
+			{
+				Config: testAccConfig(map[string]interface{}{
+					"system_disk_category":   REMOVEKEY,
+					"system_disk_categories": []string{"cloud_efficiency"},
+					"internet_charge_type":   "PayByTraffic",
+					"instance_name":          name,
+					"override":               "false",
+					"instance_type_override": []map[string]string{{
+						"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
+						"weighted_capacity": "4",
+					}},
+				}),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheck(map[string]string{
+						"system_disk_category":     REMOVEKEY,
+						"system_disk_categories.#": "1",
+						"internet_charge_type":     "PayByTraffic",
+						"instance_name":            name,
+						"instance_type_override.#": "1",
+						"override":                 "false",
+					}),
+				),
+			},
+			{
+				Config: testAccConfig(map[string]interface{}{
+					"system_disk_categories": []string{"cloud_efficiency", "cloud"},
+					"internet_charge_type":   "PayByTraffic",
+					"instance_name":          name,
+					"override":               "false",
+					"instance_type_override": []map[string]string{{
+						"instance_type":     "${data.alicloud_instance_types.default.instance_types.0.id}",
+						"weighted_capacity": "4",
+					}},
+				}),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheck(map[string]string{
+						"system_disk_categories.#": "2",
+						"internet_charge_type":     "PayByTraffic",
+						"instance_name":            name,
+						"instance_type_override.#": "1",
+						"override":                 "false",
 					}),
 				),
 			},
diff --git a/website/docs/r/ess_scaling_configuration.html.markdown b/website/docs/r/ess_scaling_configuration.html.markdown
index b77479dbfff9..ce549983cd2f 100644
--- a/website/docs/r/ess_scaling_configuration.html.markdown
+++ b/website/docs/r/ess_scaling_configuration.html.markdown
@@ -85,12 +85,13 @@ resource "alicloud_ess_scaling_group" "default" {
 }
 
 resource "alicloud_ess_scaling_configuration" "default" {
-  scaling_group_id  = alicloud_ess_scaling_group.default.id
-  image_id          = data.alicloud_images.default.images[0].id
-  instance_type     = data.alicloud_instance_types.default.instance_types[0].id
-  security_group_id = alicloud_security_group.default.id
-  force_delete      = true
-  active            = true
+  scaling_group_id     = alicloud_ess_scaling_group.default.id
+  image_id             = data.alicloud_images.default.images[0].id
+  instance_type        = data.alicloud_instance_types.default.instance_types[0].id
+  security_group_id    = alicloud_security_group.default.id
+  system_disk_category = "cloud_efficiency"
+  force_delete         = true
+  active               = true
 }
 ```
 
@@ -119,6 +120,7 @@ The following arguments are supported:
 * `internet_max_bandwidth_out` - (Optional, Available since v1.214.0) Maximum outgoing bandwidth from the public network, measured in Mbps (Mega bit per second). The value range for PayByBandwidth is [0,1024].
 * `credit_specification` - (Optional, Available since v1.98.0) Performance mode of the t5 burstable instance. Valid values: 'Standard', 'Unlimited'.
 * `system_disk_category` - (Optional) Category of the system disk. The parameter value options are `ephemeral_ssd`, `cloud_efficiency`, `cloud_ssd`, `cloud_essd` and `cloud`. `cloud` only is used to some no I/O optimized instance. Default to `cloud_efficiency`.
+* `system_disk_categories` - (Optional, Available since v1.226.0) Category N of the system disk. Valid values of N: 1 to 4. A smaller value of N specifies a higher priority. If Auto Scaling cannot create disks by using the disk category of the highest priority, it creates disks by using the disk category of the next highest priority.
 * `system_disk_size` - (Optional) Size of system disk, in GiB. Optional values: cloud: 20-500, cloud_efficiency: 20-500, cloud_ssd: 20-500, ephemeral_ssd: 20-500 The default value is max{40, ImageSize}. If this parameter is set, the system disk size must be greater than or equal to max{40, ImageSize}.
 * `system_disk_name` - (Optional, Available since v1.92.0) The name of the system disk. It must be 2 to 128 characters in length. It must start with a letter and cannot start with http:// or https://. It can contain letters, digits, colons (:), underscores (_), and hyphens (-). Default value: null.
 * `system_disk_description` - (Optional, Available since v1.92.0) The description of the system disk. The description must be 2 to 256 characters in length and cannot start with http:// or https://.