diff --git a/pom.xml b/pom.xml
index c45d16359..0152ab96f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -277,6 +277,7 @@
 									- https://docs.oracle.com/javase/10/docs/specs/jar/jar.html#jar-manifest
 							-->
 							<Premain-Class>com.alibaba.ttl.threadpool.agent.TtlAgent</Premain-Class>
+							<Agent-Class>com.alibaba.ttl.threadpool.agent.TtlAgent</Agent-Class>
 							<Boot-Class-Path>${project.build.finalName}.jar</Boot-Class-Path>
 							<Can-Redefine-Classes>false</Can-Redefine-Classes>
 							<Can-Retransform-Classes>true</Can-Retransform-Classes>
diff --git a/src/main/java/com/alibaba/ttl/threadpool/agent/TtlAgent.java b/src/main/java/com/alibaba/ttl/threadpool/agent/TtlAgent.java
index 39be3ee7a..9cde64bf5 100644
--- a/src/main/java/com/alibaba/ttl/threadpool/agent/TtlAgent.java
+++ b/src/main/java/com/alibaba/ttl/threadpool/agent/TtlAgent.java
@@ -225,6 +225,13 @@ public static void premain(final String agentArgs, @NonNull final Instrumentatio
         }
     }
 
+    /**
+     * add entry to support attaching agent dynamically
+     */
+    public static void agentmain(String agentArgs, @NonNull Instrumentation inst){
+        premain(agentArgs, inst);
+    }
+  
     private static String logTtlAgentConfig() {
         return "TTL Agent configurations:"
             + "\n    " + TTL_AGENT_LOGGER_KEY + "=" + getLoggerType()