diff --git a/deploy/pipeline/docs/tutorials/ppvehicle_retrograde.md b/deploy/pipeline/docs/tutorials/ppvehicle_retrograde.md
index 57ba922ff35c63b4a74a51af6c7defef994878fe..8f229d16ac7f4edc1e860da38faf7ec1897ceecc 100644
--- a/deploy/pipeline/docs/tutorials/ppvehicle_retrograde.md
+++ b/deploy/pipeline/docs/tutorials/ppvehicle_retrograde.md
@@ -72,7 +72,7 @@ python deploy/pipeline/pipeline.py --config deploy/pipeline/config/infer_cfg_ppv
 #预测包含一个或多个视频的文件夹
 python deploy/pipeline/pipeline.py --config deploy/pipeline/config/infer_cfg_ppvehicle.yml \
                                    -o VEHICLE_RETROGRADE.enable=true \
-                                   --video_dir=test_video.mp4\
+                                   --video_dir=test_video \
                                    --device=gpu
 ```
 
@@ -97,7 +97,8 @@ python deploy/pipeline/pipeline.py --config deploy/pipeline/config/infer_cfg_ppv
 
 **注意:**
  - 车道线中间线自动判断条件：在采样的视频段内同时有两个相反方向的车辆，且判断一次后固定，不再更新；
- - 因摄像头角度以及2d视角问题，车道线中间线判断存在不准确情况，可在配置文件手动输入中间线坐标
+ - 因摄像头角度以及2d视角问题，车道线中间线判断存在不准确情况;
+ - 可在配置文件手动输入中间线坐标.参考[车辆违章配置文件](../../config/examples/infer_cfg_vehicle_violation.yml)
 
 
 ## 方案说明
diff --git a/deploy/pipeline/docs/tutorials/ppvehicle_retrograde_en.md b/deploy/pipeline/docs/tutorials/ppvehicle_retrograde_en.md
index 457f84bfa2084075c9396f95868b29f51b45e61f..650efe199a1df5bcf0a12458c78cc2bc2b8837de 100644
--- a/deploy/pipeline/docs/tutorials/ppvehicle_retrograde_en.md
+++ b/deploy/pipeline/docs/tutorials/ppvehicle_retrograde_en.md
@@ -70,7 +70,7 @@ python deploy/pipeline/pipeline.py --config deploy/pipeline/config/infer_cfg_ppv
 #For folder contains one or multiple videos
 python deploy/pipeline/pipeline.py --config deploy/pipeline/config/infer_cfg_ppvehicle.yml \
                                    -o VEHICLE_RETROGRADE.enable=true \
-                                   --video_dir=test_video.mp4\
+                                   --video_dir=test_video \
                                    --device=gpu
 ```
 
@@ -95,7 +95,8 @@ The result is shown as follow:
 
 **Note:**
  - Automatic judgment condition of lane line middle line: there are two vehicles in opposite directions in the sampled video segment, and the judgment is fixed after one time and will not be updated;
- - Due to camera angle and 2d visual angle problems, the judgment of lane line middle line is inaccurate. You can manually enter the middle line coordinates in the configuration file
+ - Due to camera angle and 2d visual angle problems, the judgment of lane line middle line is inaccurate.
+ - You can manually enter the middle line coordinates in the configuration file.Example as [infer_cfg_vehicle_violation.yml](../../config/examples/infer_cfg_vehicle_violation.yml)
 
 
 ## Features to the Solution
diff --git a/deploy/pipeline/pipeline.py b/deploy/pipeline/pipeline.py
index 04fcfc28be29fa762122116b7c0c983ac5947688..3407f479e82a5a7ac96e29da98168df25ab44e20 100644
--- a/deploy/pipeline/pipeline.py
+++ b/deploy/pipeline/pipeline.py
@@ -24,8 +24,12 @@ import copy
 import threading
 import queue
 import time
-from collections import Sequence, defaultdict
+from collections import defaultdict
 from datacollector import DataCollector, Result
+try:
+    from collections.abc import Sequence
+except Exception:
+    from collections import Sequence
 
 # add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
diff --git a/deploy/pipeline/pphuman/action_infer.py b/deploy/pipeline/pphuman/action_infer.py
index b04bd3f881bae8cf70434dd49bb3686d3b14c410..45c04ad5198c92466764eb58696921c9f11c8bc9 100644
--- a/deploy/pipeline/pphuman/action_infer.py
+++ b/deploy/pipeline/pphuman/action_infer.py
@@ -21,7 +21,10 @@ import numpy as np
 import math
 import paddle
 import sys
-from collections import Sequence
+try:
+    from collections.abc import Sequence
+except Exception:
+    from collections import Sequence
 
 # add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
diff --git a/deploy/pipeline/pphuman/video_action_infer.py b/deploy/pipeline/pphuman/video_action_infer.py
index e5e6c10eccd32aabb992393e24cd02362b4d493c..6a10355f385a633fb7c63d90398bc32998643b8e 100644
--- a/deploy/pipeline/pphuman/video_action_infer.py
+++ b/deploy/pipeline/pphuman/video_action_infer.py
@@ -21,8 +21,11 @@ import numpy as np
 import math
 import paddle
 import sys
-from collections import Sequence
 import paddle.nn.functional as F
+try:
+    from collections.abc import Sequence
+except Exception:
+    from collections import Sequence
 
 # add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 2)))
diff --git a/deploy/pipeline/pphuman/video_action_preprocess.py b/deploy/pipeline/pphuman/video_action_preprocess.py
index f6f9f11f7aee643ebfc070073f18f7e28bebf9dd..eccec048dbe98e6326f169924ab86e5317aaba41 100644
--- a/deploy/pipeline/pphuman/video_action_preprocess.py
+++ b/deploy/pipeline/pphuman/video_action_preprocess.py
@@ -14,9 +14,12 @@
 
 import cv2
 import numpy as np
-from collections.abc import Sequence
 from PIL import Image
 import paddle
+try:
+    from collections.abc import Sequence
+except Exception:
+    from collections import Sequence
 
 
 class Sampler(object):
diff --git a/deploy/pipeline/ppvehicle/vehicle_attr.py b/deploy/pipeline/ppvehicle/vehicle_attr.py
index 4f7923f61e3aae73ece20c2125e5bd39d723e554..eb1b9423b64b3f1649f6e95790a0fa5b9fbcd7ff 100644
--- a/deploy/pipeline/ppvehicle/vehicle_attr.py
+++ b/deploy/pipeline/ppvehicle/vehicle_attr.py
@@ -21,7 +21,10 @@ import numpy as np
 import math
 import paddle
 import sys
-from collections import Sequence
+try:
+    from collections.abc import Sequence
+except Exception:
+    from collections import Sequence
 
 # add deploy path of PaddleDetection to sys.path
 parent_path = os.path.abspath(os.path.join(__file__, *(['..'] * 3)))