diff --git a/python/examples/encryption/README.md b/python/examples/encryption/README.md
index 87664e4ca84cb51051a0f8abcb76d980e6260761..d8a04e29bf56439a24db7dadfdfe3ab5d9626e14 100644
--- a/python/examples/encryption/README.md
+++ b/python/examples/encryption/README.md
@@ -13,9 +13,21 @@ sh get_data.sh
 ## Encrypt Model
 
 The `paddlepaddle` package is used in this example, you may need to download the corresponding package(`pip install paddlepaddle`).
+
+[python encrypt.py](./encrypt.py)
+
+[//file]:#encrypt.py
+``` python
+def serving_encryption():
+    inference_model_to_serving(
+        dirname="./uci_housing_model",
+        params_filename=None,
+        serving_server="encrypt_server",
+        serving_client="encrypt_client",
+        encryption=True)
 ```
-python encrypt.py
-```
+dirname is the folder path where the model is located. If the parameter is discrete, it is unnecessary to specify params_filename, else you need to set `params_filename="__params__"`.
+
 The key is stored in the `key` file, and the encrypted model file and server-side configuration file are stored in the `encrypt_server` directory.
 client-side configuration file are stored in the `encrypt_client` directory.
 
diff --git a/python/examples/encryption/README_CN.md b/python/examples/encryption/README_CN.md
index ed8fec338f9680cf42cebeff6745b3bb63f07607..bb853ff37f914a5e2cfe1c6bbb097d17eb99a29a 100644
--- a/python/examples/encryption/README_CN.md
+++ b/python/examples/encryption/README_CN.md
@@ -12,9 +12,23 @@ sh get_data.sh
 
 ## 模型加密
 本示例中使用了`paddlepaddle`包中的模块，需要进行下载（`pip install paddlepaddle`）。
-```
-python encrypt.py
-```
+
+运行[python encrypt.py](./encrypt.py)进行模型加密
+
+[//file]:#encrypt.py
+``` python
+def serving_encryption():
+    inference_model_to_serving(
+        dirname="./uci_housing_model",
+        params_filename=None,
+        serving_server="encrypt_server",
+        serving_client="encrypt_client",
+        encryption=True)
+```
+其中dirname为模型所在的文件夹路径
+
+当参数为离散参数时，无须指定params_filename，当参数为__params__时，需指定`params_filename="__params__"`
+
 密钥保存在`key`文件中，加密模型文件以及server端配置文件保存在`encrypt_server`目录下，client端配置文件保存在`encrypt_client`目录下。
 
 ## 启动加密预测服务
diff --git a/python/examples/encryption/encrypt.py b/python/examples/encryption/encrypt.py
index 9e01b5c63c95100c46b91c7f0c9c59191e66ae26..e233784390f0899cd81ec7862ceef0d506bbcd1f 100644
--- a/python/examples/encryption/encrypt.py
+++ b/python/examples/encryption/encrypt.py
@@ -18,6 +18,7 @@ from paddle_serving_client.io import inference_model_to_serving
 def serving_encryption():
     inference_model_to_serving(
         dirname="./uci_housing_model",
+        params_filename=None,
         serving_server="encrypt_server",
         serving_client="encrypt_client",
         encryption=True)