diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/conf/Config.java b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/conf/Config.java
index d7b317709..55e58942f 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/conf/Config.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/conf/Config.java
@@ -18,8 +18,6 @@
 
 package org.skywalking.apm.agent.core.conf;
 
-import java.util.LinkedList;
-import java.util.List;
 import org.skywalking.apm.agent.core.context.trace.TraceSegment;
 import org.skywalking.apm.agent.core.logging.core.LogLevel;
 import org.skywalking.apm.agent.core.logging.core.WriterFactory;
@@ -129,22 +127,6 @@ public class Config {
     }
 
     public static class Plugin {
-
-        /**
-         * Name of disabled plugin, The value spilt by <code>,</code>
-         * if you have multiple plugins need to disable.
-         *
-         * Here are the plugin names :
-         * tomcat-7.x/8.x, dubbo, jedis-2.x, motan, httpclient-4.x, jdbc, mongodb-3.x.
-         */
-        public static List DISABLED_PLUGINS = new LinkedList();
-
-        /**
-         * Name of force enable plugin, The value spilt by <code>,</code>
-         * if you have multiple plugins need to enable.
-         */
-        public static List FORCE_ENABLE_PLUGINS = new LinkedList();
-
         public static class MongoDB {
             /**
              * If true, trace all the parameters, default is false.
diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/PluginCfg.java b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/PluginCfg.java
index 3f2c78b1a..e22aa39bb 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/PluginCfg.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/PluginCfg.java
@@ -18,15 +18,16 @@
 
 package org.skywalking.apm.agent.core.plugin;
 
+import org.skywalking.apm.agent.core.logging.api.ILog;
+import org.skywalking.apm.agent.core.logging.api.LogManager;
+import org.skywalking.apm.agent.core.plugin.exception.IllegalPluginDefineException;
+
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.util.ArrayList;
 import java.util.List;
-import org.skywalking.apm.agent.core.plugin.exception.IllegalPluginDefineException;
-import org.skywalking.apm.agent.core.logging.api.ILog;
-import org.skywalking.apm.agent.core.logging.api.LogManager;
 
 public enum PluginCfg {
     INSTANCE;
@@ -45,9 +46,7 @@ public enum PluginCfg {
                         continue;
                     }
                     PluginDefine plugin = PluginDefine.build(pluginDefine);
-                    if (plugin.enable()) {
-                        pluginClassList.add(plugin);
-                    }
+                    pluginClassList.add(plugin);
                 } catch (IllegalPluginDefineException e) {
                     logger.error(e, "Failed to format plugin({}) define.", pluginDefine);
                 }
diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/PluginDefine.java b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/PluginDefine.java
index 8ac632c54..d03f54b9e 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/PluginDefine.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/plugin/PluginDefine.java
@@ -18,12 +18,10 @@
 
 package org.skywalking.apm.agent.core.plugin;
 
-import org.skywalking.apm.agent.core.conf.Config;
 import org.skywalking.apm.agent.core.plugin.exception.IllegalPluginDefineException;
 import org.skywalking.apm.util.StringUtil;
 
 public class PluginDefine {
-    public static final String PLUGIN_OFF_PREFIX = "[OFF]";
     /**
      * Plugin name.
      */
@@ -34,15 +32,9 @@ public class PluginDefine {
      */
     private String defineClass;
 
-    /**
-     * The sate of plugin.
-     */
-    private State state;
-
-    private PluginDefine(String name, String defineClass, State state) {
+    private PluginDefine(String name, String defineClass) {
         this.name = name;
         this.defineClass = defineClass;
-        this.state = state;
     }
 
     public static PluginDefine build(String define) throws IllegalPluginDefineException {
@@ -57,32 +49,12 @@ public class PluginDefine {
 
         String pluginName = pluginDefine[0];
         String defineClass = pluginDefine[1];
-        if (pluginName.toUpperCase().startsWith(PLUGIN_OFF_PREFIX)) {
-            return new PluginDefine(pluginName.substring(PLUGIN_OFF_PREFIX.length()), defineClass, State.OFF);
-        } else {
-            return new PluginDefine(pluginName, defineClass, State.ON);
-        }
-    }
-
-    public boolean enable() {
-        return !forceDisable() || forceEnable();
-    }
-
-    private boolean forceDisable() {
-        return state != State.ON || Config.Plugin.DISABLED_PLUGINS.contains(name);
-    }
-
-    private boolean forceEnable() {
-        return state == State.OFF && Config.Plugin.FORCE_ENABLE_PLUGINS.contains(name);
+        return new PluginDefine(pluginName, defineClass);
     }
 
     public String getDefineClass() {
         return defineClass;
     }
-
-    private enum State {
-        OFF, ON;
-    }
 }