diff --git a/CHANGELOG.en-US.md b/CHANGELOG.en-US.md
index ba3d5ba01e6..5ad5159ae7c 100644
--- a/CHANGELOG.en-US.md
+++ b/CHANGELOG.en-US.md
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## NEXT_VERSION
+
+### Features
+
+- `useDialog`'s option supports `z-index`, closes [#4349](https://github.com/tusen-ai/naive-ui/issues/4349).
+
 ## 2.41.0
 
 `2025-01-05`
diff --git a/CHANGELOG.zh-CN.md b/CHANGELOG.zh-CN.md
index aee800ad1d2..d71498677b0 100644
--- a/CHANGELOG.zh-CN.md
+++ b/CHANGELOG.zh-CN.md
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## NEXT_VERSION
+
+### Features
+
+- `useDialog` 的选项支持 `z-index`，关闭 [#4349](https://github.com/tusen-ai/naive-ui/issues/4349)
+
 ## 2.41.0
 
 `2025-01-05`
diff --git a/src/dialog/demos/enUS/index.demo-entry.md b/src/dialog/demos/enUS/index.demo-entry.md
index 7ac9f3bb7a0..56e1a398e1e 100644
--- a/src/dialog/demos/enUS/index.demo-entry.md
+++ b/src/dialog/demos/enUS/index.demo-entry.md
@@ -92,6 +92,7 @@ use-dialog-reactive-list.vue
 | titleStyle | `Object \| string` | `undefined` | The style of the content. | 2.38.2 |
 | transformOrigin | `'mouse' \| 'center'` | `'mouse'` | The transform origin of the dialog's display animation. | 2.34.0 |
 | type | `'error \| 'success' \| 'warning'` | `'warning'` | Dialog type. |  |
+| z-index | `number` | `undefined` | Z index of the dialog. | NEXT_VERSION |
 | onAfterEnter | `() => void` | `undefined` | Callback on enter animation ends. | 2.33.0 |
 | onAfterLeave | `() => void` | `undefined` | Callback on leave animation ends. | 2.33.3 |
 | onClose | `() => boolean \| Promise<boolean> \| any` | `undefined` | The default behavior is closing the confirm. Return `false` or resolve `false` or `Promise rejected` will prevent the default behavior. |  |
diff --git a/src/dialog/demos/zhCN/index.demo-entry.md b/src/dialog/demos/zhCN/index.demo-entry.md
index a2a675f4690..68dbf95ee69 100644
--- a/src/dialog/demos/zhCN/index.demo-entry.md
+++ b/src/dialog/demos/zhCN/index.demo-entry.md
@@ -94,6 +94,7 @@ rtl-debug.vue
 | titleStyle | `Object \| string` | `undefined` | 标题的样式 | 2.38.2 |
 | transformOrigin | `'mouse' \| 'center'` | `'mouse'` | 对话框动画出现的位置 | 2.34.0 |
 | type | `'error \| 'success' \| 'warning'` | `'warning'` | 对话框类型 |  |
+| z-index | `number` | `undefined` | Dialog 的 z-index | NEXT_VERSION |
 | onAfterEnter | `() => void` | `undefined` | 出现动画完成执行的回调 | 2.33.0 |
 | onAfterLeave | `() => void` | `undefined` | 关闭动画完成执行的回调 | 2.33.3 |
 | onClose | `() => boolean \| Promise<boolean> \| any` | `undefined` | 默认行为是关闭确认框。返回 `false` 或者 `resolve false` 或者 `Promise` 被 `reject` 会避免默认行为 |  |
diff --git a/src/dialog/src/DialogEnvironment.tsx b/src/dialog/src/DialogEnvironment.tsx
index 6d049fb27f4..e7245c9938a 100644
--- a/src/dialog/src/DialogEnvironment.tsx
+++ b/src/dialog/src/DialogEnvironment.tsx
@@ -31,6 +31,7 @@ export const exposedDialogEnvProps = {
     type: Boolean,
     default: true
   },
+  zIndex: Number,
   onPositiveClick: Function as PropType<
     (e: MouseEvent) => Promise<unknown> | unknown
   >,
@@ -148,6 +149,7 @@ export const NDialogEnvironment = defineComponent({
       handleMaskClick,
       handleEsc,
       to,
+      zIndex,
       maskClosable,
       show
     } = this
@@ -158,6 +160,7 @@ export const NDialogEnvironment = defineComponent({
         onMaskClick={handleMaskClick}
         onEsc={handleEsc}
         to={to}
+        zIndex={zIndex}
         maskClosable={maskClosable}
         onAfterEnter={this.onAfterEnter}
         onAfterLeave={handleAfterLeave}