diff --git a/DrawingManager/src/DrawingManager.js b/DrawingManager/src/DrawingManager.js
index 119c5c5..e1a7cee 100644
--- a/DrawingManager/src/DrawingManager.js
+++ b/DrawingManager/src/DrawingManager.js
@@ -943,6 +943,9 @@ var BMAP_DRAWING_MARKER    = "marker",     // 鼠标画点模式
         if (opts.sorptionDistance !== undefined) {
             this.setSorptionDistance(opts.sorptionDistance);
         }
+        if(opts.sorpOverlays){
+            this.setSorpOverlays(opts.sorpOverlays)
+        }
 
         // 是否计算绘制出的面积
         if (opts.enableCalculate === true) {
@@ -1011,6 +1014,10 @@ var BMAP_DRAWING_MARKER    = "marker",     // 鼠标画点模式
         this._sorptionDistance = distance || 0;
     };
 
+    DrawingManager.prototype.setSorpOverlays = function(sorpOverlays) {
+        this._sorpOverlays = sorpOverlays || [];
+    };
+
     DrawingManager.prototype.setPolygonOptions = function(options) {
         this.polygonOptions = options || {};
     };
@@ -1469,6 +1476,14 @@ var BMAP_DRAWING_MARKER    = "marker",     // 鼠标画点模式
                     overlay.setPositionAt(drawPoint.length - 1, matchs[0].point);
                     return;
                 }
+                if(me._sorpOverlays){
+                    var matchs2 = me.getSorptionMatch(point, me._sorpOverlays, me._sorptionDistance);
+                    if (matchs2 && matchs2.length > 0) {
+                        match = matchs2[0].point;
+                        overlay.setPositionAt(drawPoint.length - 1, matchs2[0].point);
+                        return;
+                    }
+                }
             }
             match = null;
 
@@ -2933,4 +2948,4 @@ var BMAP_DRAWING_MARKER    = "marker",     // 鼠标画点模式
         return point;
     }
 
-})();
+})();
\ No newline at end of file