diff --git a/docs-2.0/nebula-exchange/about-exchange/ex-ug-what-is-exchange.md b/docs-2.0/nebula-exchange/about-exchange/ex-ug-what-is-exchange.md
index 098350f8251..e122552e4bb 100644
--- a/docs-2.0/nebula-exchange/about-exchange/ex-ug-what-is-exchange.md
+++ b/docs-2.0/nebula-exchange/about-exchange/ex-ug-what-is-exchange.md
@@ -33,6 +33,8 @@ Exchange具有以下优点：
 
 - 支持导入SST：支持将不同来源的数据转换为SST文件，用于数据导入。
 
+- 支持SSL加密：支持在Exchange与Nebula Graph之间建立SSL加密传输通道，保障数据安全。
+
 - 支持断点续传：导入数据时支持断点续传，有助于节省时间，提高数据导入效率。
 
   !!! Note
diff --git a/docs-2.0/nebula-exchange/parameter-reference/ex-ug-parameter.md b/docs-2.0/nebula-exchange/parameter-reference/ex-ug-parameter.md
index 2da3f076b9a..ca6b0e8a267 100644
--- a/docs-2.0/nebula-exchange/parameter-reference/ex-ug-parameter.md
+++ b/docs-2.0/nebula-exchange/parameter-reference/ex-ug-parameter.md
@@ -49,6 +49,14 @@
 |`nebula.user`|string|-|是|拥有Nebula Graph写权限的用户名。|
 |`nebula.pswd`|string|-|是|用户名对应的密码。|
 |`nebula.space`|string|-|是|需要导入数据的的图空间名称。|
+|`nebula.ssl.enable.graph`|bool|`false`|是|开启Exchange与Graph服务之间的[SSL加密](https://en.wikipedia.org/wiki/Transport_Layer_Security)传输。当值为`true`时开启，下方的SSL相关参数生效。如果Exchange运行在多机集群上，在设置以下SSL相关路径时，需要在每台机器的相同路径都存储相应的文件。|
+|`nebula.ssl.sign`|string|`ca`|是|签名方式，可选值：`ca`（CA签名）或`self`（自签名）。|
+|`nebula.ssl.ca.param.caCrtFilePath`|string|`"/path/caCrtFilePath"`|是|`nebula.ssl.sign`的值为`ca`时生效，用于指定CA证书的存储路径。|
+|`nebula.ssl.ca.param.crtFilePath`|string|`"/path/crtFilePath"`|是|`nebula.ssl.sign`的值为`ca`时生效，用于指定CRT证书的存储路径。|
+|`nebula.ssl.ca.param.keyFilePath`|string|`"/path/keyFilePath"`|是|`nebula.ssl.sign`的值为`ca`时生效，用于指定私钥文件的存储路径。|
+|`nebula.ssl.self.param.crtFilePath`|string|`"/path/crtFilePath"`|是|`nebula.ssl.sign`的值为`self`时生效，用于指定CRT证书的存储路径。|
+|`nebula.ssl.self.param.keyFilePath`|string|`"/path/keyFilePath"`|是|`nebula.ssl.sign`的值为`self`时生效，用于指定私钥文件的存储路径。|
+|`nebula.ssl.self.param.password`|string|`"nebula"`|是|`nebula.ssl.sign`的值为`self`时生效，用于指定密码文件的存储路径。|
 |`nebula.path.local`|string|`"/tmp"`|否|导入SST文件时需要设置本地SST文件路径。|
 |`nebula.path.remote`|string|`"/sst"`|否|导入SST文件时需要设置远端SST文件路径。|
 |`nebula.path.hdfs.namenode`|string|`"hdfs://name_node:9000"`|否|导入SST文件时需要设置HDFS的namenode。|
diff --git a/docs-2.0/nebula-exchange/use-exchange/ex-ug-export-from-nebula.md b/docs-2.0/nebula-exchange/use-exchange/ex-ug-export-from-nebula.md
index aed63d96ea0..43f64b4c581 100644
--- a/docs-2.0/nebula-exchange/use-exchange/ex-ug-export-from-nebula.md
+++ b/docs-2.0/nebula-exchange/use-exchange/ex-ug-export-from-nebula.md
@@ -6,6 +6,10 @@
 
     仅企业版Exchange支持导出Nebula Graph数据到CSV文件。
 
+!!! note
+
+    导出Nebula Graph数据时不支持SSL加密传输。
+
 ## 环境准备
 
 本示例在Linux系统的虚拟机环境下完成，导出数据前准备的软硬件信息如下。
@@ -107,7 +111,7 @@ CentOS 7.9.2009
     ]
   }
   ```
-  
+
 3. 使用如下命令导出Nebula Graph中的数据。
   
   ```bash