diff --git a/modules/mogo-module-service/src/main/java/com/mogo/module/service/routeoverlay/MogoRouteOverlayManager.java b/modules/mogo-module-service/src/main/java/com/mogo/module/service/routeoverlay/MogoRouteOverlayManager.java
index 003d29e48e..3fd74804eb 100644
--- a/modules/mogo-module-service/src/main/java/com/mogo/module/service/routeoverlay/MogoRouteOverlayManager.java
+++ b/modules/mogo-module-service/src/main/java/com/mogo/module/service/routeoverlay/MogoRouteOverlayManager.java
@@ -158,27 +158,44 @@ public class MogoRouteOverlayManager implements
 
     @Override
     public void onLocationChanged(@Nullable MogoLocation location) {  //todo 拖尾
+//        mLocation = location;
+//        if (mTrajectoryList.isEmpty()) {
+//            return;
+//        }
+//        Log.d(TAG, "onLocationChanged : " + mTrajectoryList.size());
+//        ArrayList list = new ArrayList();
+//        for (MogoLatLng latLng : mTrajectoryList) {
+//            if (!isPointOnCarFront(mLocation, latLng)) {
+//                list.add(latLng);
+//            }
+//        }
+//
+//        StringBuilder builder = new StringBuilder();
+//        for (int i = 0; i < list.size(); i++) {
+//            MogoLatLng latLng = (MogoLatLng) list.get(i);
+//            builder.append(latLng.getLon()).append(",");
+//            builder.append(latLng.getLat()).append(",");
+//        }
+//        Log.d(TAG, "onLocationChanged : " + GsonUtils.toJson(builder.toString()));
+//        Log.d(TAG,"onLocationChanged size = " + list.size() + "---TrajectoryData = " + FunctionBuildConfig.isIgnoreConditionsDrawAutopilotTrajectoryData + "----" + STATUS_AUTOPILOT);
+//        if (FunctionBuildConfig.isIgnoreConditionsDrawAutopilotTrajectoryData || STATUS_AUTOPILOT == 1) {
+//            RouteOverlayDrawer.getInstance(mContext).drawTrajectoryList(list);
+//        }
+
         mLocation = location;
-        if (mTrajectoryList.isEmpty()) {
+        List<MogoLatLng> temp = mTrajectoryList;
+        if (temp.isEmpty()){
             return;
         }
-        Log.d(TAG, "onLocationChanged : " + mTrajectoryList.size());
-        ArrayList list = new ArrayList();
-        for (MogoLatLng latLng : mTrajectoryList) {
-            if (!isPointOnCarFront(mLocation, latLng)) {
+        Log.e(TAG, "onLocationChanged: size = "+ mTrajectoryList.size()+" ----- "+mLocation.getLongitude()+"-"+mLocation.getLatitude());
+        ArrayList  list = new ArrayList();
+        for (MogoLatLng latLng:temp) {
+            if(!isPointOnCarFront(mLocation,latLng)){
                 list.add(latLng);
             }
         }
-
-        StringBuilder builder = new StringBuilder();
-        for (int i = 0; i < list.size(); i++) {
-            MogoLatLng latLng = (MogoLatLng) list.get(i);
-            builder.append(latLng.getLon()).append(",");
-            builder.append(latLng.getLat()).append(",");
-        }
-        Log.d(TAG, "onLocationChanged : " + GsonUtils.toJson(builder.toString()));
-        Log.d(TAG,"onLocationChanged size = " + list.size() + "---TrajectoryData = " + FunctionBuildConfig.isIgnoreConditionsDrawAutopilotTrajectoryData + "----" + STATUS_AUTOPILOT);
-        if (FunctionBuildConfig.isIgnoreConditionsDrawAutopilotTrajectoryData || STATUS_AUTOPILOT == 1) {
+        Log.d(TAG,"TrajectoryData = " + FunctionBuildConfig.isIgnoreConditionsDrawAutopilotTrajectoryData + "---status = " + STATUS_AUTOPILOT + "----size = " + list.size());
+        if (FunctionBuildConfig.isIgnoreConditionsDrawAutopilotTrajectoryData || STATUS_AUTOPILOT == 1){
             RouteOverlayDrawer.getInstance(mContext).drawTrajectoryList(list);
         }
     }
diff --git a/modules/mogo-module-service/src/main/java/com/mogo/module/service/routeoverlay/RouteOverlayDrawer.java b/modules/mogo-module-service/src/main/java/com/mogo/module/service/routeoverlay/RouteOverlayDrawer.java
index c7a023eebb..575c0cd808 100644
--- a/modules/mogo-module-service/src/main/java/com/mogo/module/service/routeoverlay/RouteOverlayDrawer.java
+++ b/modules/mogo-module-service/src/main/java/com/mogo/module/service/routeoverlay/RouteOverlayDrawer.java
@@ -115,7 +115,7 @@ public class RouteOverlayDrawer {
         long drawstart = System.currentTimeMillis();
 
         mPolylinePointList.clear();
-        if (routeList != null) {
+        if (routeList != null && routeList.size() > 0) {
             for (MogoLatLng latLng : routeList) {
                 mPolylinePointList.add(latLng);
             }