diff --git a/typescript/base/combination/combo.ts b/typescript/base/combination/combo.ts
index 01f50712b..028414c82 100644
--- a/typescript/base/combination/combo.ts
+++ b/typescript/base/combination/combo.ts
@@ -12,6 +12,33 @@ export declare class Combo extends Widget {
     static EVENT_BEFORE_HIDEVIEW: string;
     static EVENT_AFTER_HIDEVIEW: string;
 
+    props: {
+        trigger: 'click' | 'hover' | 'click-hover' | '';
+        toggle: boolean;
+        direction: 'top' | 'bottom' | 'left' | 'right' | 'top,left' | 'top,right' | 'bottom,left' | 'bottom,right' | 'right,innerRight' | 'right,innerLeft' | 'innerRight' | 'innerLeft';
+        logic: {
+            dynamic: boolean;
+        },
+        container: any; // popupview放置的容器，默认为this.element
+        isDefaultInit: boolean;
+        destroyWhenHide: boolean;
+        hideWhenAnotherComboOpen: boolean;
+        isNeedAdjustHeight: boolean; // 是否需要高度调整
+        isNeedAdjustWidth: boolean;
+        stopEvent: boolean;
+        stopPropagation: boolean;
+        adjustLength: number; // 调整的距离
+        adjustXOffset: number;
+        adjustYOffset: number;
+        hideChecker: Function;
+        offsetStyle: 'left' | 'right' | 'center';
+        el: any;
+        popup: any;
+        comboClass: string;
+        hoverClass: string;
+        belowMouse: boolean;
+    }
+
     populate(...args: any[]): void;
 
     _setEnable(v: boolean): void;
diff --git a/typescript/index.ts b/typescript/index.ts
index cb559f76a..a93dcc858 100644
--- a/typescript/index.ts
+++ b/typescript/index.ts
@@ -104,6 +104,7 @@ import { TreeValueChooserInsertCombo } from "./component/treevaluechooser/combo.
 import { Radio } from "./base/single/input/radio/radio";
 import { MultiLayerSelectTreePopup } from "./widget/multilayerselecttree/multilayerselecttree.popup";
 import { MultiLayerSingleTreePopup } from "./widget/multilayersingletree/multilayersingletree.popup";
+import { MultiLayerDownListPopup } from "./widget/multilayerdownlist/multilayerdownlist.popup";
 import { TreeView } from "./base/tree/ztree/treeview";
 import { MultiTreePopup } from "./widget/multitree/multi.tree.popup";
 import { SingleSelectRadioItem } from "./case/button/item.singleselect.radio";
@@ -117,6 +118,7 @@ import { ListAsyncTree } from "./base/tree/ztree/list/listasynctree";
 import { AsyncTree } from "./base/tree/ztree/asynctree";
 import { MultiLayerSingleTreeCombo } from "./widget/multilayersingletree/multilayersingletree.combo";
 import { MultiLayerSelectTreeCombo } from "./widget/multilayerselecttree/multilayerselecttree.combo";
+import { MultiLayerDownListCombo } from "./widget/multilayerdownlist/multilayerdownlist.combo";
 import { MultiTreeListCombo } from "./widget/multitree/multi.tree.list.combo";
 import { MultiTreeInsertCombo } from "./widget/multitree/multi.tree.insert.combo";
 import { TextValueDownListCombo } from "./widget/textvaluedownlistcombo/combo.textvaluedownlist";
@@ -224,12 +226,14 @@ export interface BI extends _func, _i18n, _base, _inject, _var, _web, _utils {
     TreeValueChooserInsertCombo: typeof TreeValueChooserInsertCombo;
     MultiLayerSelectTreePopup: typeof MultiLayerSelectTreePopup;
     MultiLayerSingleTreePopup: typeof MultiLayerSingleTreePopup;
+    MultiLayerDownListPopup: typeof MultiLayerDownListPopup;
     TreeView: typeof TreeView;
     ListTreeView: typeof ListTreeView;
     ListAsyncTree: typeof ListAsyncTree;
     AsyncTree: typeof AsyncTree;
     MultiLayerSingleTreeCombo: typeof MultiLayerSingleTreeCombo;
     MultiLayerSelectTreeCombo: typeof MultiLayerSelectTreeCombo;
+    MultiLayerDownListCombo: typeof MultiLayerDownListCombo;
     MultiTreeListCombo: typeof MultiTreeListCombo;
     MultiTreeInsertCombo: typeof MultiTreeInsertCombo;
     Decorators: typeof decorator;
@@ -429,12 +433,14 @@ export {
     TreeValueChooserInsertCombo,
     MultiLayerSelectTreePopup,
     MultiLayerSingleTreePopup,
+    MultiLayerDownListPopup,
     TreeView,
     ListTreeView,
     ListAsyncTree,
     AsyncTree,
     MultiLayerSingleTreeCombo,
     MultiLayerSelectTreeCombo,
+    MultiLayerDownListCombo,
     MultiTreeListCombo,
     MultiTreeInsertCombo,
     Combo,
diff --git a/typescript/widget/multilayerdownlist/multilayerdownlist.combo.ts b/typescript/widget/multilayerdownlist/multilayerdownlist.combo.ts
new file mode 100644
index 000000000..87359ffe3
--- /dev/null
+++ b/typescript/widget/multilayerdownlist/multilayerdownlist.combo.ts
@@ -0,0 +1,32 @@
+import { Widget } from "../../core/widget";
+import { Combo } from "../../base/combination/combo";
+
+export declare class MultiLayerDownListCombo extends Widget {
+    static xtype: string;
+
+    static EVENT_CHANGE: string;
+    static EVENT_SON_VALUE_CHANGE: string;
+    static EVENT_BEFORE_POPUPVIEW: string;
+
+    props: {
+        adjustLength: Combo['props']['adjustLength'];
+        direction: Combo['props']['direction'];
+        trigger: Combo['props']['trigger'];
+        container: Combo['props']['container'];
+        stopPropagation: Combo['props']['stopPropagation'];
+        el: Combo['props']['el'];
+        chooseType: number;
+        value: any;
+        iconCls: string;
+    }
+
+    hideView(): void;
+
+    showView(e?: Event): void;
+
+    setValue(v: any): void;
+
+    getValue<T>(): T;
+
+    populate<T>(items: T[]): void;
+}
diff --git a/typescript/widget/multilayerdownlist/multilayerdownlist.popup.ts b/typescript/widget/multilayerdownlist/multilayerdownlist.popup.ts
new file mode 100644
index 000000000..c8c66e2e0
--- /dev/null
+++ b/typescript/widget/multilayerdownlist/multilayerdownlist.popup.ts
@@ -0,0 +1,20 @@
+import { Widget } from "../../core/widget";
+
+export declare class MultiLayerDownListPopup extends Widget {
+    static xtype: string;
+
+    static EVENT_CHANGE: string;
+    static EVENT_SON_VALUE_CHANGE: string;
+
+    props: {
+        items: any[];
+        chooseType: number;
+        value: any;
+    }
+
+    getValue<T>(): T;
+
+    setValue(v: any): void;
+
+    populate<T>(items: T[]): void;
+}