diff --git a/lib/android/src/main/java/cn/feewee/amap3d/map_view/Marker.kt b/lib/android/src/main/java/cn/feewee/amap3d/map_view/Marker.kt
index c8ecc23..7646935 100644
--- a/lib/android/src/main/java/cn/feewee/amap3d/map_view/Marker.kt
+++ b/lib/android/src/main/java/cn/feewee/amap3d/map_view/Marker.kt
@@ -6,6 +6,7 @@ import android.graphics.Canvas
 import android.os.Handler
 import android.os.Looper
 import android.view.View
+import cn.feewee.amap3d.R
 import com.amap.api.maps.AMap
 import com.amap.api.maps.model.*
 import com.amap.api.maps.model.Marker
@@ -15,7 +16,7 @@ import cn.feewee.amap3d.fetchImage
 
 class Marker(context: Context) : ReactViewGroup(context), Overlay {
   private var view: View? = null
-  private var icon: BitmapDescriptor? = BitmapDescriptorFactory.fromResource(R.drawable.cqfw_amap_location)
+  private var icon: BitmapDescriptor? = null
   private var anchorX: Float = 0.5f
   private var anchorY: Float = 1f
   var marker: Marker? = null
@@ -86,7 +87,7 @@ class Marker(context: Context) : ReactViewGroup(context), Overlay {
     marker = map.addMarker(
       MarkerOptions()
         .setFlat(flat)
-        .icon(icon)
+        .icon(icon?:BitmapDescriptorFactory.fromResource(R.drawable.cqfw_amap_location))
         .alpha(opacity)
         .draggable(draggable)
         .position(position)