diff --git a/handler/gather/gather_scenes.py b/handler/gather/gather_scenes.py
index ffb7553b..6fdc9f01 100644
--- a/handler/gather/gather_scenes.py
+++ b/handler/gather/gather_scenes.py
@@ -133,6 +133,10 @@ def __init_task_names(self):
                         self.yaml_tasks[item] = yaml_task_data
                     else:
                         self.stdio.error("Invalid Task :{0}".format(item))
+            # hard code add gather observer.base
+            if len(self.code_tasks) > 0:
+                yaml_task_base = scene.get_one_yaml_task("observer.base")
+                self.yaml_tasks["observer.base"] = yaml_task_base
         else:
             self.stdio.error("get task name failed")
 
diff --git a/handler/gather/tasks/observer/base.yaml b/handler/gather/tasks/observer/base.yaml
new file mode 100644
index 00000000..e75c9c7a
--- /dev/null
+++ b/handler/gather/tasks/observer/base.yaml
@@ -0,0 +1,68 @@
+info_en: "[cluster base info]"
+info_cn: "[集群基础信息]"
+command: obdiag gather scene run --scene=observer.base
+task:
+  - version: "[2.0.0.0, 4.0.0.0]"
+    steps:
+      - type: sql
+        sql: "show variables like 'version_comment';"
+        global: true
+      - type: sql
+        sql: "SELECT * FROM oceanbase.v$ob_cluster"
+        global: true
+      - type: sql
+        sql: "SELECT * FROM oceanbase.__all_zone WHERE name='idc';"
+        global: true
+      - type: sql
+        sql: "select svr_ip,zone,with_rootserver,status,block_migrate_in_time,start_service_time,stop_time,build_version from oceanbase.__all_server order by zone;"
+        global: true
+      - type: sql
+        sql: "SELECT zone, concat(svr_ip, ':', svr_port) observer, cpu_capacity, cpu_total, cpu_assigned, cpu_assigned_percent, mem_capacity, mem_total, mem_assigned, mem_assigned_percent, unit_Num, round(`load`, 2) `load`, round(cpu_weight, 2) cpu_weight, round(memory_weight, 2) mem_weight, leader_count FROM oceanbase.__all_virtual_server_stat ORDER BY zone,svr_ip;"
+        global: true
+      - type: sql
+        sql: "select tenant_id,tenant_name,primary_zone,compatibility_mode from oceanbase.__all_tenant;"
+        global: true
+      - type: sql
+        sql: "show parameters like '%syslog_level%';"
+        global: true
+      - type: sql
+        sql: "show parameters like '%syslog_io_bandwidth_limit%';"
+        global: true
+      - type: sql
+        sql: "select count(*),tenant_id,zone_list,unit_count from oceanbase.__all_resource_pool group by tenant_id,zone_list,unit_count;"
+        global: true
+      - type: sql
+        sql: "show parameters"
+        global: true
+  - version: "[4.0.0.0, *]"
+    steps:
+      - type: sql
+        sql: "show variables like 'version_comment';"
+        global: true
+      - type: sql
+        sql: "SELECT * FROM oceanbase.DBA_OB_ZONES;"
+        global: true
+      - type: sql
+        sql: "SELECT * FROM oceanbase.DBA_OB_SERVERS;"
+        global: true
+      - type: sql
+        sql: "SELECT * FROM oceanbase.GV$OB_SERVERS;"
+        global: true
+      - type: sql
+        sql: "SELECT * FROM oceanbase.DBA_OB_UNIT_CONFIGS;"
+        global: true
+      - type: sql
+        sql: "SELECT * FROM oceanbase.DBA_OB_RESOURCE_POOLS;"
+        global: true
+      - type: sql
+        sql: "SELECT * FROM oceanbase.DBA_OB_TENANTS;"
+        global: true
+      - type: sql
+        sql: "SELECT c.TENANT_ID, e.TENANT_NAME, concat(c.NAME, ': ', d.NAME) `pool:conf`,concat(c.UNIT_COUNT, ' unit: ', d.min_cpu, 'C/', ROUND(d.MEMORY_SIZE/1024/1024/1024,0), 'G') unit_info FROM oceanbase.DBA_OB_RESOURCE_POOLS c, oceanbase.DBA_OB_UNIT_CONFIGS d, oceanbase.DBA_OB_TENANTS e WHERE c.UNIT_CONFIG_ID=d.UNIT_CONFIG_ID AND c.TENANT_ID=e.TENANT_ID AND c.TENANT_ID>1000 ORDER BY c.TENANT_ID;"
+        global: true
+      - type: sql
+        sql: "SELECT a.TENANT_NAME,a.TENANT_ID,b.SVR_IP FROM oceanbase.DBA_OB_TENANTS a, oceanbase.GV$OB_UNITS b WHERE a.TENANT_ID=b.TENANT_ID;"
+        global: true
+      - type: sql
+        sql: "show parameters"
+        global: true