diff --git a/packages/fineui/src/component/treevaluechooser/abstract.treevaluechooser.js b/packages/fineui/src/component/treevaluechooser/abstract.treevaluechooser.js
index 61323f27c..90bf612d4 100644
--- a/packages/fineui/src/component/treevaluechooser/abstract.treevaluechooser.js
+++ b/packages/fineui/src/component/treevaluechooser/abstract.treevaluechooser.js
@@ -174,6 +174,7 @@ export class AbstractTreeValueChooser extends Widget {
     }
 
     _reqSelectedTreeNode(op, callback) {
+        const self = this;
         const selectedValues = deepClone(op.selectedValues);
         const notSelectedValue = op.notSelectedValue || {};
         const keyword = op.keyword || "";
@@ -188,7 +189,7 @@ export class AbstractTreeValueChooser extends Widget {
         dealWithSelectedValues(selectedValues);
         callback(selectedValues);
 
-        const dealWithSelectedValues = selectedValues => {
+        function dealWithSelectedValues(selectedValues) {
             let p = parentValues.concat(notSelectedValue);
             // 存储的值中存在这个值就把它删掉
             // 例如选中了中国-江苏-南京， 取消中国或江苏或南京
@@ -197,18 +198,18 @@ export class AbstractTreeValueChooser extends Widget {
                 // 如果搜索的值在父亲链中
                 if (isSearchValueInParent(p)) {
                     // 例如选中了 中国-江苏， 搜索江苏， 取消江苏(干掉了江苏)
-                    this._deleteNode(selectedValues, p);
+                    self._deleteNode(selectedValues, p);
                 } else {
                     const searched = [];
                     // 要找到所有以notSelectedValue为叶子节点的链路
                     const find = search(parentValues, notSelectedValue, [], searched);
                     if (find && isNotEmptyArray(searched)) {
                         each(searched, (i, arr) => {
-                            const node = this._getNode(selectedValues, arr);
+                            const node = self._getNode(selectedValues, arr);
                             if (node) {
                                 // 例如选中了 中国-江苏， 搜索江苏， 取消中国（实际上只想删除中国-江苏，因为搜的是江苏）
                                 // 例如选中了 中国-江苏-南京，搜索南京，取消中国（实际上只想删除中国-江苏-南京，因为搜的是南京）
-                                this._deleteNode(selectedValues, arr);
+                                self._deleteNode(selectedValues, arr);
                             } else {
                                 // 例如选中了 中国-江苏，搜索南京，取消中国（实际上只想删除中国-江苏-南京，因为搜的是南京）
                                 expandSelectedValue(selectedValues, arr, last(arr));
@@ -239,14 +240,14 @@ export class AbstractTreeValueChooser extends Widget {
                     // 添加去掉搜索的结果集
                     if (result.length > 0) {
                         each(result, (i, strs) => {
-                            this._buildTree(selectedValues, strs);
+                            self._buildTree(selectedValues, strs);
                         });
                     }
                 }
             }
         };
 
-        const expandSelectedValue = (selectedValues, parents, notSelectedValue) => {
+        function expandSelectedValue(selectedValues, parents, notSelectedValue) {
             let next = selectedValues;
             const childrenCount = [];
             const path = [];
@@ -259,7 +260,7 @@ export class AbstractTreeValueChooser extends Widget {
                     }
                     if (isEmpty(next)) {
                         const split = parents.slice(0, i);
-                        const expanded = this._getChildren(split);
+                        const expanded = self._getChildren(split);
                         path.push(split);
                         childrenCount.push(expanded.length);
                         // 如果只有一个值且取消的就是这个值
@@ -270,7 +271,7 @@ export class AbstractTreeValueChooser extends Widget {
                         ) {
                             for (let j = childrenCount.length - 1; j >= 0; j--) {
                                 if (childrenCount[j] === 1) {
-                                    this._deleteNode(selectedValues, path[j]);
+                                    self._deleteNode(selectedValues, path[j]);
                                 } else {
                                     break;
                                 }
@@ -295,16 +296,16 @@ export class AbstractTreeValueChooser extends Widget {
             });
         };
 
-        const search = (parents, current, result, searched) => {
+        function search(parents, current, result, searched) {
             const newParents = clone(parents);
             newParents.push(current);
-            if (this._isMatch(parents, current, keyword)) {
+            if (self._isMatch(parents, current, keyword)) {
                 searched && searched.push(newParents);
 
                 return true;
             }
 
-            const children = this._getChildren(newParents);
+            const children = self._getChildren(newParents);
 
             const notSearch = [];
             let can = false;
@@ -327,9 +328,9 @@ export class AbstractTreeValueChooser extends Widget {
             return can;
         };
 
-        const isSearchValueInParent = parentValues => {
+        function isSearchValueInParent(parentValues) {
             for (let i = 0, len = parentValues.length; i < len; i++) {
-                if (this._isMatch(parentValues.slice(0, i), parentValues[i], keyword)) {
+                if (self._isMatch(parentValues.slice(0, i), parentValues[i], keyword)) {
                     return true;
                 }
             }