diff --git a/doric-android/devkit/src/main/java/pub/doric/devkit/DevKit.java b/doric-android/devkit/src/main/java/pub/doric/devkit/DevKit.java
deleted file mode 100644
index e79f1da4..00000000
--- a/doric-android/devkit/src/main/java/pub/doric/devkit/DevKit.java
+++ /dev/null
@@ -1,139 +0,0 @@
-package pub.doric.devkit;
-
-import android.widget.Toast;
-
-import com.github.pengfeizhou.jscore.JSONBuilder;
-
-import org.greenrobot.eventbus.EventBus;
-import org.greenrobot.eventbus.Subscribe;
-import org.greenrobot.eventbus.ThreadMode;
-import org.json.JSONObject;
-
-import pub.doric.Doric;
-import pub.doric.DoricContext;
-import pub.doric.DoricContextManager;
-import pub.doric.DoricNativeDriver;
-import pub.doric.devkit.event.ConnectExceptionEvent;
-import pub.doric.devkit.event.EOFExceptionEvent;
-import pub.doric.devkit.event.OpenEvent;
-import pub.doric.devkit.event.StopDebugEvent;
-import pub.doric.utils.DoricLog;
-
-public class DevKit implements IDevKit {
-    public static boolean isRunningInEmulator = false;
-    public static String ip = "";
-
-    private static class Inner {
-        private static final DevKit sInstance = new DevKit();
-    }
-
-    private DevKit() {
-        DoricNativeDriver.getInstance().getRegistry().registerMonitor(new DoricDevMonitor());
-        EventBus.getDefault().register(this);
-    }
-
-    public static DevKit getInstance() {
-        return Inner.sInstance;
-    }
-
-
-    private WSClient wsClient;
-
-    boolean devKitConnected = false;
-
-    private DoricContextDebuggable debuggable;
-
-    @Override
-    public void connectDevKit(String url) {
-        wsClient = new WSClient(url);
-    }
-
-    @Override
-    public void sendDevCommand(IDevKit.Command command, JSONObject jsonObject) {
-        wsClient.sendToServer(command.toString(), jsonObject);
-    }
-
-    @Override
-    public void disconnectDevKit() {
-        wsClient.close();
-        wsClient = null;
-    }
-
-    @Override
-    public void startDebugging(String source) {
-        if (debuggable != null) {
-            debuggable.stopDebug(true);
-        }
-        DoricContext context = matchContext(source);
-        if (context == null) {
-            DoricLog.d("Cannot find  context source %s for debugging", source);
-            wsClient.sendToDebugger("DEBUG_STOP", new JSONBuilder()
-                    .put("msg", "Cannot find suitable alive context for debugging")
-                    .toJSONObject());
-        } else {
-            wsClient.sendToDebugger(
-                    "DEBUG_RES",
-                    new JSONBuilder()
-                            .put("contextId", context.getContextId())
-                            .toJSONObject());
-            debuggable = new DoricContextDebuggable(wsClient, context);
-            debuggable.startDebug();
-        }
-    }
-
-    @Override
-    public void stopDebugging(boolean resume) {
-        wsClient.sendToDebugger("DEBUG_STOP", new JSONBuilder()
-                .put("msg", "Stop debugging")
-                .toJSONObject());
-        if (debuggable != null) {
-            debuggable.stopDebug(resume);
-            debuggable = null;
-        }
-    }
-
-
-    @Subscribe(threadMode = ThreadMode.MAIN)
-    public void onOpenEvent(OpenEvent openEvent) {
-        devKitConnected = true;
-        Toast.makeText(Doric.application(), "dev kit connected", Toast.LENGTH_LONG).show();
-    }
-
-    @Subscribe(threadMode = ThreadMode.MAIN)
-    public void onEOFEvent(EOFExceptionEvent eofExceptionEvent) {
-        devKitConnected = false;
-        Toast.makeText(Doric.application(), "dev kit eof exception", Toast.LENGTH_LONG).show();
-    }
-
-    @Subscribe(threadMode = ThreadMode.MAIN)
-    public void onConnectExceptionEvent(ConnectExceptionEvent connectExceptionEvent) {
-        devKitConnected = false;
-        Toast.makeText(Doric.application(), "dev kit connection exception", Toast.LENGTH_LONG).show();
-    }
-
-    @Subscribe(threadMode = ThreadMode.MAIN)
-    public void onQuitDebugEvent(StopDebugEvent quitDebugEvent) {
-        stopDebugging(true);
-    }
-
-    public DoricContext matchContext(String source) {
-        for (DoricContext context : DoricContextManager.aliveContexts()) {
-            if (source.contains(context.getSource()) || context.getSource().equals("__dev__")) {
-                return context;
-            }
-        }
-        return null;
-    }
-
-    public void reload(String source, String script) {
-        DoricContext context = matchContext(source);
-        if (context == null) {
-            DoricLog.d("Cannot find context source %s for reload", source);
-        } else if (context.getDriver() instanceof DoricDebugDriver) {
-            DoricLog.d("Context source %s in debugging,skip reload", source);
-        } else {
-            DoricLog.d("Context reload :id %s,source %s ", context.getContextId(), source);
-            context.reload(script);
-        }
-    }
-}
diff --git a/doric-android/devkit/src/main/java/pub/doric/devkit/IDevKit.java b/doric-android/devkit/src/main/java/pub/doric/devkit/IDevKit.java
deleted file mode 100644
index dd720085..00000000
--- a/doric-android/devkit/src/main/java/pub/doric/devkit/IDevKit.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package pub.doric.devkit;
-
-
-import org.json.JSONObject;
-
-public interface IDevKit {
-
-    enum Command {
-        HOT_RELOAD, EXCEPTION, LOG, DEBUG
-    }
-
-    void connectDevKit(String url);
-
-    void sendDevCommand(IDevKit.Command command, JSONObject jsonObject);
-
-    void disconnectDevKit();
-
-    void startDebugging(String source);
-
-    void stopDebugging(boolean resume);
-}