diff --git a/src/chart/map.js b/src/chart/map.js
index ad91a83b05aeb4e491e7efb44e9ec6d214a0d713..0dfbb075d3cb697b77c1db82f557d25673fe6afe 100644
--- a/src/chart/map.js
+++ b/src/chart/map.js
@@ -1521,6 +1521,9 @@ define(function (require) {
             this.messageCenter.unbind(
                 ecConfig.EVENT.ROAMCONTROLLER, this._onroamcontroller
             );
+            this.messageCenter.unbind(
+                ecConfig.EVENT.DATA_RANGE_HOVERLINK, this._ondrhoverlink
+            );
         }
     };