diff --git a/CHANGES.md b/CHANGES.md
index 85bb71d4e..da53a495f 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -48,6 +48,7 @@ Release Notes.
 
 #### Documentation
 * Add VNode FAQ doc.
+* Add logic endpoint section in the agent setup doc.
 * Adjust configuration names and system environment names of the sharing server module
 
 All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/62?closed=1)
diff --git a/docs/en/setup/service-agent/java-agent/README.md b/docs/en/setup/service-agent/java-agent/README.md
index 1a9c9bd2a..144fee322 100755
--- a/docs/en/setup/service-agent/java-agent/README.md
+++ b/docs/en/setup/service-agent/java-agent/README.md
@@ -184,6 +184,19 @@ Now, we have the following known bootstrap plugins.
 * Plugin of JDK HttpURLConnection. Agent is compatible with JDK 1.6+
 * Plugin of JDK Callable and Runnable. Agent is compatible with JDK 1.6+
 
+## The Logic Endpoint
+In default, all the RPC server-side names as entry spans, such as RESTFul API path and gRPC service name, would be endpoints with metrics.
+At the same time, SkyWalking introduces the logic endpoint concept, which allows plugins and users to add new endpoints without adding new spans.
+The following logic endpoints are added automatically by plugins.
+1. GraphQL Query and Mutation are logic endpoints by using the names of them.
+1. Spring's ScheduledMethodRunnable jobs are logic endpoints. The name format is `SpringScheduled`/`${className}`/`${methodName}`.
+1. Apache ShardingSphere ElasticJob's jobs are logic endpoints. The name format is `ElasticJob`/`${jobName}`.
+1. XXLJob's jobs are logic endpoints. The name formats include `xxl-job`/`MethodJob`/`${className}`.`${methodName}`, `xxl-job`/`ScriptJob`/`${GlueType}`/`id`/`${jobId}`, and `xxl-job`/`SimpleJob`/`${className}`.
+1. Quartz(optional plugin)'s jobs are logic endpoints. the name format is `quartz-scheduler`/`${jobName}`.
+
+User could use the SkyWalking's application toolkits to add the tag into the local span to label the span as a logic endpoint in the analysis stage.
+The tag is, key=`x-le` and value = `{"logic-span":true}`.
+
 ## Advanced Features
 * Set the settings through system properties for config file override. Read [setting override](Setting-override.md).
 * Use gRPC TLS to link backend. See [open TLS](TLS.md)