diff --git a/db/TDesign.db b/db/TDesign.db
index 68c05456e..88765c979 100644
Binary files a/db/TDesign.db and b/db/TDesign.db differ
diff --git a/packages/products/tdesign-miniprogram/src/fab/README.en-US.md b/packages/products/tdesign-miniprogram/src/fab/README.en-US.md
index 00cce57dc..a49fb14f6 100644
--- a/packages/products/tdesign-miniprogram/src/fab/README.en-US.md
+++ b/packages/products/tdesign-miniprogram/src/fab/README.en-US.md
@@ -9,10 +9,11 @@ name | type | default | description | required
 style | Object | - | CSS(Cascading Style Sheets) | N
 custom-style | Object | - | CSS(Cascading Style Sheets)，used to set style on virtual component | N
 button-props | Object | - | Typescript：`ButtonProps`，[Button API Documents](./button?tab=api)。[see more ts definition](https://github.com/Tencent/tdesign-miniprogram/tree/develop/src/fab/type.ts) | N
-draggable | String / Boolean | false | \- | N
+draggable | String / Boolean | false | Typescript：`boolean \| FabDirectionEnum ` `type FabDirectionEnum = 'all' \| 'vertical' \| 'horizontal'`。[see more ts definition](https://github.com/Tencent/tdesign-miniprogram/tree/develop/src/fab/type.ts) | N
 icon | String | - | \- | N
 text | String | - | \- | N
 using-custom-navbar | Boolean | false | \- | N
+y-bounds | Array | - | Typescript：`Array<string \| number>` | N
 
 ### Fab Events
 
diff --git a/packages/products/tdesign-miniprogram/src/fab/README.md b/packages/products/tdesign-miniprogram/src/fab/README.md
index fba5316a9..02ced92f9 100644
--- a/packages/products/tdesign-miniprogram/src/fab/README.md
+++ b/packages/products/tdesign-miniprogram/src/fab/README.md
@@ -9,10 +9,11 @@
 style | Object | - | 样式 | N
 custom-style | Object | - | 样式，一般用于开启虚拟化组件节点场景 | N
 button-props | Object | - | 透传至 Button 组件。TS 类型：`ButtonProps`，[Button API Documents](./button?tab=api)。[详细类型定义](https://github.com/Tencent/tdesign-miniprogram/tree/develop/src/fab/type.ts) | N
-draggable | String / Boolean | false | `true` / `'all'`可拖动<br>`'vertical'`可垂直拖动<br>`'horizontal'`可水平拖动<br>`false`禁止拖动 | N
+draggable | String / Boolean | false | 是否可拖拽。`true` / `'all'`可拖动<br>`'vertical'`可垂直拖动<br>`'horizontal'`可水平拖动<br>`false`禁止拖动。TS 类型：`boolean \| FabDirectionEnum ` `type FabDirectionEnum = 'all' \| 'vertical' \| 'horizontal'`。[详细类型定义](https://github.com/Tencent/tdesign-miniprogram/tree/develop/src/fab/type.ts) | N
 icon | String | - | 图标 | N
 text | String | - | 文本内容 | N
 using-custom-navbar | Boolean | false | 是否使用了自定义导航栏 | N
+y-bounds | Array | - | 设置垂直方向边界限制，示例：[48, 48] 或 ['96rpx', 80]。TS 类型：`Array<string \| number>` | N
 
 ### Fab Events
 
diff --git a/packages/products/tdesign-miniprogram/src/fab/props.ts b/packages/products/tdesign-miniprogram/src/fab/props.ts
index 94a71f664..b206fc958 100644
--- a/packages/products/tdesign-miniprogram/src/fab/props.ts
+++ b/packages/products/tdesign-miniprogram/src/fab/props.ts
@@ -10,7 +10,7 @@ const props: TdFabProps = {
   buttonProps: {
     type: Object,
   },
-  /** `true` / `'all'`可拖动<br>`'vertical'`可垂直拖动<br>`'horizontal'`可水平拖动<br>`false`禁止拖动 */
+  /** 是否可拖拽。`true` / `'all'`可拖动<br>`'vertical'`可垂直拖动<br>`'horizontal'`可水平拖动<br>`false`禁止拖动 */
   draggable: {
     type: null,
     value: false,
@@ -35,6 +35,10 @@ const props: TdFabProps = {
     type: Boolean,
     value: false,
   },
+  /** 设置垂直方向边界限制，示例：[48, 48] 或 ['96rpx', 80] */
+  yBounds: {
+    type: Array,
+  },
 };
 
 export default props;
diff --git a/packages/products/tdesign-miniprogram/src/fab/type.ts b/packages/products/tdesign-miniprogram/src/fab/type.ts
index d99a4ad6b..a70a45de4 100644
--- a/packages/products/tdesign-miniprogram/src/fab/type.ts
+++ b/packages/products/tdesign-miniprogram/src/fab/type.ts
@@ -15,12 +15,12 @@ export interface TdFabProps {
     value?: ButtonProps;
   };
   /**
-   * `true` / `'all'`可拖动<br>`'vertical'`可垂直拖动<br>`'horizontal'`可水平拖动<br>`false`禁止拖动
+   * 是否可拖拽。`true` / `'all'`可拖动<br>`'vertical'`可垂直拖动<br>`'horizontal'`可水平拖动<br>`false`禁止拖动
    * @default false
    */
   draggable?: {
     type: null;
-    value?: string | boolean;
+    value?: boolean | FabDirectionEnum;
   };
   /**
    * 图标
@@ -54,4 +54,13 @@ export interface TdFabProps {
     type: BooleanConstructor;
     value?: boolean;
   };
+  /**
+   * 设置垂直方向边界限制，示例：[48, 48] 或 ['96rpx', 80]
+   */
+  yBounds?: {
+    type: ArrayConstructor;
+    value?: Array<string | number>;
+  };
 }
+
+export type FabDirectionEnum = 'all' | 'vertical' | 'horizontal';
diff --git a/packages/scripts/api.json b/packages/scripts/api.json
index 6df2dc5f6..0b234204b 100644
--- a/packages/scripts/api.json
+++ b/packages/scripts/api.json
@@ -47418,14 +47418,14 @@
       ],
       "field_default_value": "false",
       "field_enum": "",
-      "field_desc_zh": "`true` / `'all'`可拖动<br>`'vertical'`可垂直拖动<br>`'horizontal'`可水平拖动<br>`false`禁止拖动",
+      "field_desc_zh": "是否可拖拽。`true` / `'all'`可拖动<br>`'vertical'`可垂直拖动<br>`'horizontal'`可水平拖动<br>`false`禁止拖动",
       "field_desc_en": null,
       "field_required": 0,
       "event_input": "",
       "create_time": "2024-04-01 10:59:27",
       "update_time": "2024-04-01 10:59:27",
       "event_output": null,
-      "custom_field_type": null,
+      "custom_field_type": "boolean | FabDirectionEnum 【type FabDirectionEnum = 'all' | 'vertical' | 'horizontal'】",
       "syntactic_sugar": null,
       "readonly": 1,
       "html_attribute": 0,
@@ -47677,6 +47677,43 @@
         "Boolean"
       ]
     },
+    {
+      "id": 1725534756,
+      "platform_framework": [
+        "64"
+      ],
+      "component": "Fab",
+      "field_category": 1,
+      "field_name": "yBounds",
+      "field_type": [
+        "16"
+      ],
+      "field_default_value": "",
+      "field_enum": "",
+      "field_desc_zh": "设置垂直方向边界限制，示例：[48, 48] 或 ['96rpx', 80]",
+      "field_desc_en": null,
+      "field_required": 0,
+      "event_input": "",
+      "create_time": "2024-09-05 11:12:36",
+      "update_time": "2024-09-05 11:12:36",
+      "event_output": null,
+      "custom_field_type": "Array<string | number>",
+      "syntactic_sugar": null,
+      "readonly": 1,
+      "html_attribute": 0,
+      "trigger_elements": "",
+      "deprecated": 0,
+      "version": "",
+      "test_description": null,
+      "support_default_value": 0,
+      "field_category_text": "Props",
+      "platform_framework_text": [
+        "Miniprogram"
+      ],
+      "field_type_text": [
+        "Array"
+      ]
+    },
     {
       "id": 2505,
       "platform_framework": [