diff --git a/examples/seg/deeplabv3/config/deeplabv3_s16_dilated_resnet101.yaml b/examples/seg/deeplabv3/config/deeplabv3_s16_dilated_resnet101.yaml
index 186175c48..9bfc3b5bb 100644
--- a/examples/seg/deeplabv3/config/deeplabv3_s16_dilated_resnet101.yaml
+++ b/examples/seg/deeplabv3/config/deeplabv3_s16_dilated_resnet101.yaml
@@ -2,7 +2,7 @@
 
 # system
 seed: 1
-mode: 1
+mode: 0
 distribute: True
 num_parallel_workers: 8
 device_target: "Ascend"
@@ -33,7 +33,7 @@ output_stride: 16
 model: "deeplabv3"
 ckpt_pre_trained: False
 ckpt_path: ""
-amp_level: "O3"
+amp_level: "O2"
 amp_cast_list: None
 
 # scheduler
diff --git a/examples/seg/deeplabv3/config/deeplabv3_s8_dilated_resnet101.yaml b/examples/seg/deeplabv3/config/deeplabv3_s8_dilated_resnet101.yaml
index be44da9cf..17c34a93c 100644
--- a/examples/seg/deeplabv3/config/deeplabv3_s8_dilated_resnet101.yaml
+++ b/examples/seg/deeplabv3/config/deeplabv3_s8_dilated_resnet101.yaml
@@ -2,7 +2,7 @@
 
 # system
 seed: 1
-mode: 1
+mode: 0
 distribute: True
 num_parallel_workers: 8
 device_target: "Ascend"
@@ -33,7 +33,7 @@ output_stride: 8
 model: "deeplabv3"
 ckpt_pre_trained: True
 ckpt_path: "/path/to/pre_trained.ckpt"
-amp_level: "O3"
+amp_level: "O2"
 amp_cast_list: None
 
 # scheduler
diff --git a/examples/seg/deeplabv3/config/deeplabv3plus_s16_dilated_resnet101.yaml b/examples/seg/deeplabv3/config/deeplabv3plus_s16_dilated_resnet101.yaml
index 3dfcf277c..35c5bce58 100644
--- a/examples/seg/deeplabv3/config/deeplabv3plus_s16_dilated_resnet101.yaml
+++ b/examples/seg/deeplabv3/config/deeplabv3plus_s16_dilated_resnet101.yaml
@@ -2,7 +2,7 @@
 
 # system
 seed: 1
-mode: 1
+mode: 0
 distribute: True
 num_parallel_workers: 8
 device_target: "Ascend"
@@ -33,7 +33,7 @@ output_stride: 16
 model: "deeplabv3plus"
 ckpt_pre_trained: False
 ckpt_path: ""
-amp_level: "O3"
+amp_level: "O2"
 amp_cast_list: None
 
 # scheduler
diff --git a/examples/seg/deeplabv3/config/deeplabv3plus_s8_dilated_resnet101.yaml b/examples/seg/deeplabv3/config/deeplabv3plus_s8_dilated_resnet101.yaml
index 2dff57ded..8d5fd9e4c 100644
--- a/examples/seg/deeplabv3/config/deeplabv3plus_s8_dilated_resnet101.yaml
+++ b/examples/seg/deeplabv3/config/deeplabv3plus_s8_dilated_resnet101.yaml
@@ -2,7 +2,7 @@
 
 # system
 seed: 1
-mode: 1
+mode: 0
 distribute: True
 num_parallel_workers: 8
 device_target: "Ascend"
@@ -33,7 +33,7 @@ output_stride: 8
 model: "deeplabv3plus"
 ckpt_pre_trained: True
 ckpt_path: "/path/to/pre_trained.ckpt"
-amp_level: "O3"
+amp_level: "O2"
 amp_cast_list: None
 
 # scheduler
diff --git a/examples/seg/deeplabv3/deeplabv3.py b/examples/seg/deeplabv3/deeplabv3.py
index 0a637f91c..10df2fd45 100644
--- a/examples/seg/deeplabv3/deeplabv3.py
+++ b/examples/seg/deeplabv3/deeplabv3.py
@@ -95,7 +95,7 @@ def __init__(
 
     def construct(self, x):
         size = ops.shape(x)
-        out = nn.AvgPool2d(size[2])(x)
+        out = ops.mean(x, (2, 3), True)
         out = self.conv(out)
         out = ops.ResizeNearestNeighbor((size[2], size[3]), True)(out)
         return out