diff --git a/changelog.md b/changelog.md
index bef9a247c0..aeab84ac22 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,6 @@
 # 更新日志
 2.0(2020-06)
+- 下拉树系列支持isNeedAdjustWidth以动态变化宽度
 - 修复了新增值的下拉控件传递valueFormatter搜索完全匹配项提示新增
 - 修复了选色控件历史记录没有选中的问题的问题
 - 修复了单选下拉框新增值的时候没有发事件的问题
diff --git a/src/component/treevaluechooser/combo.listtreevaluechooser.js b/src/component/treevaluechooser/combo.listtreevaluechooser.js
index 4286b9cd7f..7fa35c6cf6 100644
--- a/src/component/treevaluechooser/combo.listtreevaluechooser.js
+++ b/src/component/treevaluechooser/combo.listtreevaluechooser.js
@@ -13,7 +13,8 @@ BI.ListTreeValueChooserInsertCombo = BI.inherit(BI.AbstractListTreeValueChooser,
             width: 200,
             height: 24,
             items: null,
-            itemsCreator: BI.emptyFn
+            itemsCreator: BI.emptyFn,
+            isNeedAdjustWidth: true,
         });
     },
 
@@ -25,6 +26,7 @@ BI.ListTreeValueChooserInsertCombo = BI.inherit(BI.AbstractListTreeValueChooser,
         }
         this.combo = BI.createWidget({
             type: "bi.multi_tree_list_combo",
+            isNeedAdjustWidth: o.isNeedAdjustWidth,
             element: this,
             text: o.text,
             value: o.value,
diff --git a/src/component/treevaluechooser/combo.treevaluechooser.insert.js b/src/component/treevaluechooser/combo.treevaluechooser.insert.js
index 3527c5d3a2..5ef51011c8 100644
--- a/src/component/treevaluechooser/combo.treevaluechooser.insert.js
+++ b/src/component/treevaluechooser/combo.treevaluechooser.insert.js
@@ -13,7 +13,8 @@ BI.TreeValueChooserInsertCombo = BI.inherit(BI.AbstractTreeValueChooser, {
             width: 200,
             height: 24,
             items: null,
-            itemsCreator: BI.emptyFn
+            itemsCreator: BI.emptyFn,
+            isNeedAdjustWidth: true
         });
     },
 
@@ -25,6 +26,7 @@ BI.TreeValueChooserInsertCombo = BI.inherit(BI.AbstractTreeValueChooser, {
         }
         this.combo = BI.createWidget({
             type: "bi.multi_tree_insert_combo",
+            isNeedAdjustWidth: o.isNeedAdjustWidth,
             allowEdit: o.allowEdit,
             text: o.text,
             value: o.value,
diff --git a/src/component/treevaluechooser/combo.treevaluechooser.js b/src/component/treevaluechooser/combo.treevaluechooser.js
index a859fed0ff..99ccfbbf71 100644
--- a/src/component/treevaluechooser/combo.treevaluechooser.js
+++ b/src/component/treevaluechooser/combo.treevaluechooser.js
@@ -13,7 +13,8 @@ BI.TreeValueChooserCombo = BI.inherit(BI.AbstractTreeValueChooser, {
             width: 200,
             height: 24,
             items: null,
-            itemsCreator: BI.emptyFn
+            itemsCreator: BI.emptyFn,
+            isNeedAdjustWidth: true
         });
     },
 
@@ -34,6 +35,7 @@ BI.TreeValueChooserCombo = BI.inherit(BI.AbstractTreeValueChooser, {
             valueFormatter: BI.bind(this._valueFormatter, this),
             width: o.width,
             height: o.height,
+            isNeedAdjustWidth: o.isNeedAdjustWidth,
             listeners: [{
                 eventName: BI.MultiTreeCombo.EVENT_FOCUS,
                 action: function () {
diff --git a/src/widget/multilayerselecttree/multilayerselecttree.combo.js b/src/widget/multilayerselecttree/multilayerselecttree.combo.js
index fbfec93806..fd47795728 100644
--- a/src/widget/multilayerselecttree/multilayerselecttree.combo.js
+++ b/src/widget/multilayerselecttree/multilayerselecttree.combo.js
@@ -18,7 +18,8 @@ BI.MultiLayerSelectTreeCombo = BI.inherit(BI.Widget, {
             },
             allowEdit: false,
             allowSearchValue: false,
-            allowInsertValue: false
+            allowInsertValue: false,
+            isNeedAdjustWidth: true
         });
     },
 
@@ -95,8 +96,10 @@ BI.MultiLayerSelectTreeCombo = BI.inherit(BI.Widget, {
                 },
                 value: o.value,
                 maxHeight: 400,
+                maxWidth: o.isNeedAdjustWidth ? "auto" : 500,
                 minHeight: 240
             },
+            isNeedAdjustWidth: o.isNeedAdjustWidth,
             listeners: [{
                 eventName: BI.Combo.EVENT_BEFORE_POPUPVIEW,
                 action: function () {
diff --git a/src/widget/multilayersingletree/multilayersingletree.combo.js b/src/widget/multilayersingletree/multilayersingletree.combo.js
index 5534e27acd..5cf34118dc 100644
--- a/src/widget/multilayersingletree/multilayersingletree.combo.js
+++ b/src/widget/multilayersingletree/multilayersingletree.combo.js
@@ -21,7 +21,8 @@ BI.MultiLayerSingleTreeCombo = BI.inherit(BI.Widget, {
             },
             allowEdit: false,
             allowSearchValue: false,
-            allowInsertValue: false
+            allowInsertValue: false,
+            isNeedAdjustWidth: true
         });
     },
 
@@ -98,8 +99,10 @@ BI.MultiLayerSingleTreeCombo = BI.inherit(BI.Widget, {
                 },
                 value: o.value,
                 maxHeight: 400,
+                maxWidth: o.isNeedAdjustWidth ? "auto" : 500,
                 minHeight: 240
             },
+            isNeedAdjustWidth: o.isNeedAdjustWidth,
             listeners: [{
                 eventName: BI.Combo.EVENT_BEFORE_POPUPVIEW,
                 action: function () {
diff --git a/src/widget/multitree/multi.tree.combo.js b/src/widget/multitree/multi.tree.combo.js
index 97b28d492e..e431d918d0 100644
--- a/src/widget/multitree/multi.tree.combo.js
+++ b/src/widget/multitree/multi.tree.combo.js
@@ -21,7 +21,8 @@ BI.MultiTreeCombo = BI.inherit(BI.Single, {
             itemsCreator: BI.emptyFn,
             valueFormatter: BI.emptyFn,
             height: 24,
-            allowEdit: true
+            allowEdit: true,
+            isNeedAdjustWidth: true,
         });
     },
 
@@ -106,8 +107,10 @@ BI.MultiTreeCombo = BI.inherit(BI.Single, {
                         self.numberCounter.adjustView();
                         self.trigger.getSearcher().adjustView();
                     });
-                }
+                },
+                maxWidth: o.isNeedAdjustWidth ? "auto" : 500,
             },
+            isNeedAdjustWidth: o.isNeedAdjustWidth,
             value: {value: o.value || {}},
             hideChecker: function (e) {
                 return triggerBtn.element.find(e.target).length === 0 &&
diff --git a/src/widget/multitree/multi.tree.insert.combo.js b/src/widget/multitree/multi.tree.insert.combo.js
index e005b80977..b441760394 100644
--- a/src/widget/multitree/multi.tree.insert.combo.js
+++ b/src/widget/multitree/multi.tree.insert.combo.js
@@ -21,7 +21,8 @@ BI.MultiTreeInsertCombo = BI.inherit(BI.Single, {
             itemsCreator: BI.emptyFn,
             valueFormatter: BI.emptyFn,
             height: 24,
-            allowEdit: true
+            allowEdit: true,
+            isNeedAdjustWidth: true
         });
     },
 
@@ -121,8 +122,10 @@ BI.MultiTreeInsertCombo = BI.inherit(BI.Single, {
                         self.numberCounter.adjustView();
                         self.trigger.getSearcher().adjustView();
                     });
-                }
+                },
+                maxWidth: o.isNeedAdjustWidth ? "auto" : 500,
             },
+            isNeedAdjustWidth: o.isNeedAdjustWidth,
             value: {value: o.value || {}},
             hideChecker: function (e) {
                 return triggerBtn.element.find(e.target).length === 0 &&
diff --git a/src/widget/multitree/multi.tree.list.combo.js b/src/widget/multitree/multi.tree.list.combo.js
index 31fb9893da..72ba8966de 100644
--- a/src/widget/multitree/multi.tree.list.combo.js
+++ b/src/widget/multitree/multi.tree.list.combo.js
@@ -22,7 +22,8 @@ BI.MultiTreeListCombo = BI.inherit(BI.Single, {
             valueFormatter: BI.emptyFn,
             height: 24,
             allowEdit: true,
-            allowInsertValue: true
+            allowInsertValue: true,
+            isNeedAdjustWidth: true
         });
     },
 
@@ -140,8 +141,10 @@ BI.MultiTreeListCombo = BI.inherit(BI.Single, {
                         self.numberCounter.adjustView();
                         self.trigger.getSearcher().adjustView();
                     });
-                }
+                },
+                maxWidth: o.isNeedAdjustWidth ? "auto" : 500,
             },
+            isNeedAdjustWidth: o.isNeedAdjustWidth,
             value: {value: o.value || {}},
             hideChecker: function (e) {
                 return triggerBtn.element.find(e.target).length === 0 &&