diff --git a/src/UI/Components/Asset.tsx b/src/UI/Components/Asset.tsx
index 2e8061825..d476b6174 100644
--- a/src/UI/Components/Asset.tsx
+++ b/src/UI/Components/Asset.tsx
@@ -73,6 +73,7 @@ export enum CurDefMtlType
     Draw = 1,
     Wall = 2,
     Floor = 3,
+    CeilingFace = 4  //吊顶底面
 }
 
 /**
@@ -85,6 +86,8 @@ export class Asset extends React.Component<AssetProps, {}>
     _DivColorRef = React.createRef<HTMLDivElement>();
     _CurWallMtlIconMarginBottom: number = 2;
     _CurFloorMtlIconMarginBottom: number = 2;
+    _CurCeilingFaceMtlIconMarginBottom: number = 2;
+    _CurCeilingFaceMtlIconMarginLeft: number = -17;
     _NameEl: HTMLDivElement;
     _RemoveCall: Function[] = [];
     _RenderIng = false;
@@ -303,6 +306,11 @@ export class Asset extends React.Component<AssetProps, {}>
                         app.Database.MaterialTable.CurBoardMtl = material.Id;
                         break;
                     }
+                case CurDefMtlType.CeilingFace:
+                    {
+                        app.Database.MaterialTable.CurBulkCeilingFaceMaterial = material.Id;
+                        break;
+                    }
             }
         }, "设置默认材质");
     };
@@ -354,28 +362,46 @@ export class Asset extends React.Component<AssetProps, {}>
     };
 
     /**
-     *多个重叠时改变marginBottom
+     * 图标多个重叠时改变marginBottom
      */
     _GetIconMarginBottom()
     {
-        if (app.Database.MaterialTable.CurBoardMtl === app.Database.MaterialTable.CurWallMtl)
+        let curBoardMtl = app.Database.MaterialTable.CurBoardMtl;
+        let curWallMtl = app.Database.MaterialTable.CurWallMtl;
+        let curFloorMtl = app.Database.MaterialTable.CurFloorMtl;
+        let curBulkCeilingFaceMaterial = app.Database.MaterialTable.CurBulkCeilingFaceMaterial;
+
+        let layers = [0, 0, 0, 0]; //都是第一层
+        let mtls = [curBoardMtl, curWallMtl, curFloorMtl, curBulkCeilingFaceMaterial];
+
+        for (let i = 0; i < mtls.length; i++)
         {
-            this._CurWallMtlIconMarginBottom = 21;
-            if (app.Database.MaterialTable.CurBoardMtl === app.Database.MaterialTable.CurFloorMtl)
-                this._CurFloorMtlIconMarginBottom = 40;
-            else
-                this._CurFloorMtlIconMarginBottom = 2;
+            for (let j = 0; j < i; j++)
+            {
+                if (i !== j && mtls[i] && mtls[j] && mtls[i] === mtls[j])
+                    layers[i] = layers[i] + 1;
+            }
         }
-        else if (app.Database.MaterialTable.CurBoardMtl === app.Database.MaterialTable.CurFloorMtl
-            || app.Database.MaterialTable.CurWallMtl === app.Database.MaterialTable.CurFloorMtl)
+
+        this._CurWallMtlIconMarginBottom = 2 + layers[1] * 19;
+        this._CurFloorMtlIconMarginBottom = 2 + layers[2] * 19;
+
+        //              ---------
+        // ---------    |      X|
+        // |      X|    |      X|
+        // |      X|    |      X|
+        // |    X X|    |      X|
+        // ---------    ---------
+        //默认吊顶图标在第4层时 大图标不用改变位置  小图标放置左边
+        if (layers[3] === 3 && !userConfig.isLargeIcon)
         {
-            this._CurWallMtlIconMarginBottom = 2;
-            this._CurFloorMtlIconMarginBottom = 21;
+            this._CurCeilingFaceMtlIconMarginBottom = 2;
+            this._CurCeilingFaceMtlIconMarginLeft = -34;
         }
         else
         {
-            this._CurWallMtlIconMarginBottom = 2;
-            this._CurFloorMtlIconMarginBottom = 2;
+            this._CurCeilingFaceMtlIconMarginBottom = 2 + layers[3] * 19;
+            this._CurCeilingFaceMtlIconMarginLeft = -17;
         }
     }
 
@@ -408,9 +434,10 @@ export class Asset extends React.Component<AssetProps, {}>
                         React.createElement(MenuItem, { onClick: this._HandleApply, text: "应用到当前选择实体" }),
                         React.createElement(MenuItem, { onClick: this._HighLightEntity, text: "显示应用当前材质的实体" }),
                         React.createElement(MenuItem, { onClick: this._ApplyUseCurBrsGoodInfo, text: "一键更新板件板材" }),
-                        React.createElement(MenuItem, { onClick: () => this._SetCurDefMtl(CurDefMtlType.Draw), text: "设置为默认板块材质" }),
-                        React.createElement(MenuItem, { onClick: () => this._SetCurDefMtl(CurDefMtlType.Wall), text: "设置为默认墙体材质" }),
-                        React.createElement(MenuItem, { onClick: () => this._SetCurDefMtl(CurDefMtlType.Floor), text: "设置为默认地面材质" }),
+                        React.createElement(MenuItem, { onClick: () => this._SetCurDefMtl(CurDefMtlType.Draw), text: "设置为板块默认材质" }),
+                        React.createElement(MenuItem, { onClick: () => this._SetCurDefMtl(CurDefMtlType.Wall), text: "设置为墙体默认材质" }),
+                        React.createElement(MenuItem, { onClick: () => this._SetCurDefMtl(CurDefMtlType.Floor), text: "设置为地面默认材质" }),
+                        React.createElement(MenuItem, { onClick: () => this._SetCurDefMtl(CurDefMtlType.CeilingFace), text: "设置为吊顶底面默认材质" }),
                         React.createElement(MenuItem, { onClick: this._HandleCollection, text: "收藏" }),
                         this.props.material === app.Database.DefaultMaterial ? "" : React.createElement(MenuItem, { onClick: this._HandleDelete, text: "删除" }),
                     );
@@ -448,6 +475,13 @@ export class Asset extends React.Component<AssetProps, {}>
                             style={{ marginBottom: this._CurFloorMtlIconMarginBottom }}
                         />
                     }
+                    {
+                        this.props.material.objectId === app.Database.MaterialTable.CurBulkCeilingFaceMaterial && <img
+                            src={`${ICON_CDN}/${IconEnum.HeadCeilingContour}`}
+                            className='currentMaterialIcon'
+                            style={{ marginBottom: this._CurCeilingFaceMtlIconMarginBottom, marginLeft: this._CurCeilingFaceMtlIconMarginLeft }}
+                        />
+                    }
                 </div>
                 <div
                     style={TextStyle}