diff --git a/src/base/tree/ztree/treerender.service.js b/src/base/tree/ztree/treerender.service.js
deleted file mode 100644
index 37ef035b9..000000000
--- a/src/base/tree/ztree/treerender.service.js
+++ /dev/null
@@ -1,123 +0,0 @@
-/**
- * @author windy
- * @version 2.0
- * Created by windy on 2020/1/8
- */
-
-!(function () {
-    BI.TreeRenderService = BI.inherit(BI.OB, {
-        _init: function () {
-            this.nodeLists = {};
-
-            this.id = this.options.id;
-            // renderService是否已经注册了滚动
-            this.hasBinded = false;
-
-            this.container = this.options.container;
-        },
-
-        _getNodeListBounds: function (tId) {
-            var nodeList = this.options.subNodeListGetter(tId)[0];
-            return {
-                top: nodeList.offsetTop,
-                left: nodeList.offsetLeft,
-                width: nodeList.offsetWidth,
-                height: nodeList.offsetHeight
-            }
-        },
-
-        _getTreeContainerBounds: function () {
-            var nodeList = this.container[0];
-            if (BI.isNotNull(nodeList)) {
-                return {
-                    top: nodeList.offsetTop + nodeList.scrollTop,
-                    left: nodeList.offsetLeft + nodeList.scrollLeft,
-                    width: nodeList.offsetWidth,
-                    height: nodeList.offsetHeight
-                };
-            }
-            return {};
-        },
-
-        _canNodePopulate: function (tId) {
-            if (this.nodeLists[tId].locked) {
-                return false;
-            }
-            // 获取ul, 即子节点列表的bounds
-            // 是否需要继续加载，只需要看子节点列表的下边界与container是否无交集
-            var bounds = this._getNodeListBounds(tId);
-            var containerBounds = this._getTreeContainerBounds(tId);
-            // ul底部是不是漏出来了
-            if (bounds.top + bounds.height < containerBounds.top + containerBounds.height) {
-                return true;
-            }
-            return false;
-        },
-
-        _isNodeInVisible: function (tId) {
-            var nodeList = this.options.subNodeListGetter(tId);
-            return nodeList.length === 0 || nodeList.css("display") === "none";
-        },
-
-        pushNodeList: function (tId, populate) {
-            var self = this;
-            if (!BI.has(this.nodeLists, tId)) {
-                this.nodeLists[tId] = {
-                    populate: BI.debounce(populate, 0),
-                    options: {
-                        times: 1
-                    },
-                    // 在上一次请求返回前, 通过滚动再次触发加载的时候, 不应该认为是下一次分页, 需要等待上次请求返回
-                    // 以保证顺序和请求次数的完整
-                    locked: false
-                };
-            } else {
-                this.nodeLists[tId].locked = false;
-            }
-            if(!this.hasBinded) {
-                // console.log("绑定事件");
-                this.hasBinded = true;
-                this.container && this.container.on("scroll", BI.debounce(function () {
-                    self.refreshAllNodes();
-                }, 30));
-            }
-        },
-
-        refreshAllNodes: function () {
-            var self = this;
-            BI.each(this.nodeLists, function (tId) {
-                // 不展开的节点就不看了
-                !self._isNodeInVisible(tId) && self.refreshNodes(tId);
-            });
-        },
-
-        refreshNodes: function (tId) {
-            if (this._canNodePopulate(tId)) {
-                var nodeList = this.nodeLists[tId];
-                nodeList.options.times++;
-                nodeList.locked = true;
-                nodeList.populate({
-                    times: nodeList.options.times
-                });
-            }
-        },
-
-        removeNodeList: function (tId) {
-            delete this.nodeLists[tId];
-            if (BI.size(this.nodeLists) === 0) {
-                this.clear();
-            }
-        },
-
-        clear: function () {
-            var self = this;
-            BI.each(this.nodeLists, function (tId) {
-                self.removeNodeList(tId);
-            });
-            this.nodeLists = {};
-            // console.log("解绑事件");
-            this.container.off("scroll");
-            this.hasBinded = false;
-        }
-    });
-})();
\ No newline at end of file