diff --git a/packages/core/src/item/edge.ts b/packages/core/src/item/edge.ts
index df8cbbcc77..a5c9bdda38 100644
--- a/packages/core/src/item/edge.ts
+++ b/packages/core/src/item/edge.ts
@@ -34,8 +34,8 @@ export default class Edge extends Item implements IEdge {
       // 如果设置成具体的点，则清理节点
       this.set(pointName, value);
       this.set(itemName, null);
-    } else {
-      value!.addEdge(this);
+    } else if (value) {
+      value.addEdge(this);
       this.set(itemName, value);
       this.set(pointName, null);
     }
diff --git a/packages/core/src/util/math.ts b/packages/core/src/util/math.ts
index d790f02098..73c62bdc7d 100644
--- a/packages/core/src/util/math.ts
+++ b/packages/core/src/util/math.ts
@@ -357,7 +357,7 @@ export const translate = (group: IGroup, vec: Point) => {
  * @param group Group 实例
  * @param point 移动到的坐标点
  */
-export const move = (group: IGroup, point: Point, animate?: boolean, animateCfg?: GraphAnimateConfig = {}) => {
+export const move = (group: IGroup, point: Point, animate?: boolean, animateCfg?: GraphAnimateConfig = { duration: 500 }) => {
   let matrix: Matrix = group.getMatrix();
   if (!matrix) {
     matrix = [1, 0, 0, 0, 1, 0, 0, 0, 1];