diff --git a/python/examples/ocr/README.md b/python/examples/ocr/README.md
index 36bc18d8091874914944580fd8326caa1950c9d6..0fa61ab12b6b4c061d46628bb8e0cbb67bca1c3f 100644
--- a/python/examples/ocr/README.md
+++ b/python/examples/ocr/README.md
@@ -38,7 +38,7 @@ python ocr_debugger_server.py
 
 ## Web Debugger Client Prediction
 ```
-python ocr_web_clint.py
+python ocr_web_client.py
 ```
 
 ## Benchmark
@@ -53,3 +53,35 @@ Dataset: RCTW 500 sample images
 |------------------------------|----------------|----------------------------|------------------|--------------------|------------------|--------------------|--------------------|------------------|--------------------|--------------------------|--------------------|--------------|---------------|
 | Serving web service          | 8.69         | 13.41                      | 109.97           | 2.82               | 87.76            | 4.29               | 3.98               | 78.51            | 3.66               | 4.12                     | 181.02             | 136.49       | 317.51        |
 | Serving Debugger web service |  8.73        | 16.42                      | 115.27           | 2.93               | 20.63            | 3.97               | 4.48               | 13.84            | 3.60               | 6.91                     | 49.45              | 147.33       | 196.78        |
+
+## Appendix: Det or Rec only
+if you are going to detect images not recognize it or directly recognize the words from images. We also provide Det and Rec server for you.
+
+### Det Server 
+
+```
+python det_web_server.py 
+#or
+python det_debugger_server.py
+```
+
+### Det Client
+
+```
+# also use ocr_web_client.py
+python ocr_web_client.py
+```
+
+### Rec Server
+
+```
+python rec_web_server.py 
+#or
+python rec_debugger_server.py
+```
+
+### Rec Client
+
+```
+python rec_web_client.py
+```
diff --git a/python/examples/ocr/README_CN.md b/python/examples/ocr/README_CN.md
index 9321333679b4b150f524aff4890579eacbebc46d..44473ea80d056addd8be288649c685f2da245cac 100644
--- a/python/examples/ocr/README_CN.md
+++ b/python/examples/ocr/README_CN.md
@@ -43,7 +43,7 @@ python ocr_debugger_server.py
 
 ## 启动客户端
 ```
-python ocr_web_clint.py
+python ocr_web_client.py
 ```
 
 ## 性能指标
@@ -58,3 +58,36 @@ GPU: Nvidia Tesla V100单卡
 |------------------------------|----------------|----------------------------|------------------|--------------------|------------------|--------------------|--------------------|------------------|--------------------|--------------------------|--------------------|--------------|---------------|
 | Serving web service          | 8.69         | 13.41                      | 109.97           | 2.82               | 87.76            | 4.29               | 3.98               | 78.51            | 3.66               | 4.12                     | 181.02             | 136.49      | 317.51        |
 | Serving Debugger web service | 8.73         | 16.42                      | 115.27           | 2.93               | 20.63            | 3.97               | 4.48               | 13.84            | 3.60               | 6.91                     | 49.45              | 147.33      | 196.78        |
+
+
+## 附录： 检测/识别单服务启动
+如果您想单独启动检测或者识别服务，我们也提供了启动单服务的代码
+
+### 启动检测服务
+
+```
+python det_web_server.py 
+#or
+python det_debugger_server.py
+```
+
+### 检测服务客户端
+
+```
+# also use ocr_web_client.py
+python ocr_web_client.py
+```
+
+### 启动识别服务
+
+```
+python rec_web_server.py 
+#or
+python rec_debugger_server.py
+```
+
+### 识别服务客户端
+
+```
+python rec_web_client.py
+```
diff --git a/python/examples/ocr/det_debugger_server.py b/python/examples/ocr/det_debugger_server.py
index 6900585f9615bcfb28b8b0674d79ec1676cbaad4..acfccdb6d24a7e1ba490705dd147f21dbf921d31 100644
--- a/python/examples/ocr/det_debugger_server.py
+++ b/python/examples/ocr/det_debugger_server.py
@@ -65,7 +65,7 @@ class OCRService(WebService):
 ocr_service = OCRService(name="ocr")
 ocr_service.load_model_config("ocr_det_model")
 ocr_service.set_gpus("0")
-ocr_service.prepare_server(workdir="workdir", port=8900, device="gpu", gpuid=0)
+ocr_service.prepare_server(workdir="workdir", port=9292, device="gpu", gpuid=0)
 ocr_service.init_det()
 ocr_service.run_debugger_service()
 ocr_service.run_web_service()
diff --git a/python/examples/ocr/det_web_server.py b/python/examples/ocr/det_web_server.py
index 454e96869d68c80a3522f2706c4d5486fb98b645..dd69be0c70eb0f4dd627aa47ad33045a204f78c0 100644
--- a/python/examples/ocr/det_web_server.py
+++ b/python/examples/ocr/det_web_server.py
@@ -66,7 +66,7 @@ class OCRService(WebService):
 ocr_service = OCRService(name="ocr")
 ocr_service.load_model_config("ocr_det_model")
 ocr_service.set_gpus("0")
-ocr_service.prepare_server(workdir="workdir", port=8900, device="gpu", gpuid=0)
+ocr_service.prepare_server(workdir="workdir", port=9292, device="gpu", gpuid=0)
 ocr_service.init_det()
 ocr_service.run_rpc_service()
 ocr_service.run_web_service()
diff --git a/python/examples/ocr/rec_web_client.py b/python/examples/ocr/rec_web_client.py
index 2bad668cd2c5f46aeebfad01941367727af4d08c..312a2148886d6f084a1c077d84e907cb28c0652a 100644
--- a/python/examples/ocr/rec_web_client.py
+++ b/python/examples/ocr/rec_web_client.py
@@ -28,7 +28,7 @@ def cv2_to_base64(image):
 
 
 headers = {"Content-type": "application/json"}
-url = "http://127.0.0.1:8900/ocr/prediction"
+url = "http://127.0.0.1:9292/ocr/prediction"
 test_img_dir = "rec_img/"
 
 for img_file in os.listdir(test_img_dir):
diff --git a/python/examples/ocr/rec_web_server.py b/python/examples/ocr/rec_web_server.py
index 3e35b2435ac812b130cddb58c55c405e741d2bb8..684c313d4d50cfe00c576c81aad05a810525dcce 100644
--- a/python/examples/ocr/rec_web_server.py
+++ b/python/examples/ocr/rec_web_server.py
@@ -66,6 +66,6 @@ ocr_service = OCRService(name="ocr")
 ocr_service.load_model_config("ocr_rec_model")
 ocr_service.set_gpus("0")
 ocr_service.init_rec()
-ocr_service.prepare_server(workdir="workdir", port=8900, device="gpu", gpuid=0)
+ocr_service.prepare_server(workdir="workdir", port=9292, device="gpu", gpuid=0)
 ocr_service.run_rpc_service()
 ocr_service.run_web_service()