diff --git a/docs/10-Endpoint-CN.md b/docs/10-Endpoint-CN.md
index 9bd93cc3b7..2f6912f176 100644
--- a/docs/10-Endpoint-CN.md
+++ b/docs/10-Endpoint-CN.md
@@ -2,27 +2,64 @@
 ***
 
 ## Endpoint
-Endpoint 是请求访问的域名
 
-优先级：request > profile > rules
- 
+> Endpoint 是请求接口服务的网络域名，如 `ecs.cn-hangzhou.aliyuncs.com`
+
+### Endpoint 寻址
+
+[相关源码](../aliyun-java-sdk-core/src/main/java/com/aliyuncs/endpoint/DefaultEndpointResolver.java)
+
+1. 用户自定义
+
+`用户自定义`是优先级最高的寻址逻辑，可以直接指定 endpoint 的具体内容。
+
 ```java
-DefaultProfile profile = DefaultProfile.getProfile("regionId", "AccessKeyId", "AccessKeySecret");
-IAcsClient client = new DefaultAcsClient(profile);
 // 全局生效
-DefaultProfile.addEndpoint("regionId", "product", "your endpoint");
+DefaultProfile.addEndpoint("<RegionID>", "<Product>", "<Endpoint>");
 
-DescribeRegionsRequest regionsRequest = new DescribeRegionsRequest();
-// 只对当前request生效
-regionsRequest.setSysEndpoint("your endpoint");
+// 只对当前 Request 生效
+DescribeRegionsRequest request = new DescribeRegionsRequest();
+request.setSysEndpoint("<Endpoint>");
+```
+
+2. Endpoint 拼接规则
 
-// 拼接规则设置网络,参数：share、 inner、 vpc、 public
-regionsRequest.productNetwork = "public";
-DescribeRegionsResponse regionsResponse = client.getAcsResponse(regionsRequest);
+在请求 VPC 网络时或产品 SDK 具有 Endpoint 数据文件时，当前寻址逻辑才会生效。
+Endpoint 数据文件示例 ([Ecs Endpoint Data File](../aliyun-java-sdk-ecs/src/main/java/com/aliyuncs/ecs/Endpoint.java))
+
+```java
+// 公网请求
+request.productNetwork = "public"; // 因为 `productNetwork` 的默认值为 `public`，所以默认情况下不需要配置 `productNetwork`
 
+// 跨域请求
+request.productNetwork = "share";
+
+// IPV6 请求
+request.productNetwork = "ipv6";
+
+// 代理请求
+request.productNetwork = "proxy";
+
+// 内部请求
+request.productNetwork = "inner";
+
+// IPV4/IPV6 双协议栈
+request.productNetwork = "dualstack";
+
+// VPC 请求
+request.productNetwork = "vpc";
+// 或者通过启用`enableUsingVpcEndpoint`配置来访问 vpc 网络
+DefaultProfile profile = DefaultProfile.getProfile("<RegionID>", "<AccessKeyId>", "<AccessKeySecret>");
+profile.enableUsingVpcEndpoint();
 ```
 
-拼接规则方式需要产品端支持并符合规范方可使用。
+3. 根据 Java SDK Core 中的 [endpoints.json](../aliyun-java-sdk-core/src/main/resources/endpoints.json) 数据文件进行寻址
+
+内部操作，无需额外配置。
+
+4. 请求 Location 服务接口，从远端获取
+
+需要产品 SDK 具备 `ServiceCode`
 
 ***
 [← 异常](9-Exception-CN.md) | Endpoint[(English)](10-Endpoint-EN.md) | [首页 →](../README-CN.md)
diff --git a/docs/10-Endpoint-EN.md b/docs/10-Endpoint-EN.md
index 6577846d9a..0672e88ceb 100644
--- a/docs/10-Endpoint-EN.md
+++ b/docs/10-Endpoint-EN.md
@@ -2,27 +2,63 @@
 ***
 
 ## Endpoint
-The endpoint is the domain you want to access
 
-Priority：request > profile > rules
- 
+> Endpoint is the domain name of the service API. like `ecs.cn-hangzhou.aliyuncs.com`
+
+### Search Endpoint
+
+[Related source code](../aliyun-java-sdk-core/src/main/java/com/aliyuncs/endpoint/DefaultEndpointResolver.java)
+
+1. User custom defined
+
+`User custom defined` is the highest-priority logic to search endpoint and allows you to specify endpoint specifics directly.
+
+```java
+// Global effect
+DefaultProfile.addEndpoint("<RegionID>", "<Product>", "<Endpoint>");
+
+// Only works for the current request
+DescribeRegionsRequest request = new DescribeRegionsRequest();
+request.setSysEndpoint("<Endpoint>");
+```
+
+2. Endpoint Splicing Rules
+
+`Endpoint Splicing Rules` does not take effect until the VPC network is enabled or the product SDK has an Endpoint data file.
+Endpoint Data File Example : ([Ecs Endpoint Data File](../aliyun-java-sdk-ecs/src/main/java/com/aliyuncs/ecs/Endpoint.java))
+
 ```java
-DefaultProfile profile = DefaultProfile.getProfile("regionId", "AccessKeyId", "AccessKeySecret");
-IAcsClient client = new DefaultAcsClient(profile);
-// global
-DefaultProfile.addEndpoint("regionId", "product", "your endpoint");
+// Public network request(default)
+request.productNetwork = "public"; // Since the default value of `productNetwork` is `public`, there is no need to configure `productNetwork` by default.
+
+// Share-domain request
+request.productNetwork = "share";
 
-DescribeRegionsRequest regionsRequest = new DescribeRegionsRequest();
-// Only the current request is valid
-regionsRequest.setSysEndpoint("your endpoint");
+// IPV6 network request
+request.productNetwork = "ipv6";
 
-// Splicing rules set the network; parameter:share、 inner、 vpc、 public
-regionsRequest.productNetwork = "public";
-DescribeRegionsResponse regionsResponse = client.getAcsResponse(regionsRequest);
+// Proxy network request
+request.productNetwork = "proxy";
 
+// Internal network request
+request.productNetwork = "inner";
+
+// IPV4/IPV6 Dual Stack
+request.productNetwork = "dualstack";
+
+// VPC network request
+request.productNetwork = "vpc";
+// Or access the VPC network by enabling the `enableUsingVpcEndpoint` configuration
+DefaultProfile profile = DefaultProfile.getProfile("<RegionID>", "<AccessKeyId>", "<AccessKeySecret>");
+profile.enableUsingVpcEndpoint();
 ```
 
-Splicing rules need to be supported by the product side and conform to the specification before they can be used。
+3. Search endpoint from the [endpoints.json](../aliyun-java-sdk-core/src/main/resources/endpoints.json) endpoint data file in the Java SDK Core
+Internal operation, no additional configuration required.
+
+4. Request Location Service API to get `Endpoint` from the remote end.
+
+Requires product SDK with `ServiceCode`.
 
 ***
 [← 异常](9-Exception-EN.md) | Endpoint[(中文)](10-Endpoint-CN.md) | [首页 →](../README.md)