diff --git a/packages/web-vue/components/cascader/cascader.vue b/packages/web-vue/components/cascader/cascader.vue
index 4f72b110c..6766fbc81 100644
--- a/packages/web-vue/components/cascader/cascader.vue
+++ b/packages/web-vue/components/cascader/cascader.vue
@@ -300,9 +300,7 @@ export default defineComponent({
      * @en Mount container for popup
      */
     popupContainer: {
-      type: [String, Object] as PropType<
-        string | HTMLElement | null | undefined
-      >,
+      type: [String, Object] as PropType<string | HTMLElement>,
     },
     /**
      * @zh 多选模式下，最多显示的标签数量。0 表示不限制
diff --git a/packages/web-vue/components/date-picker/picker.vue b/packages/web-vue/components/date-picker/picker.vue
index 1b9c98514..4555139db 100644
--- a/packages/web-vue/components/date-picker/picker.vue
+++ b/packages/web-vue/components/date-picker/picker.vue
@@ -264,9 +264,7 @@ export default defineComponent({
      * @en Mount container for pop-up box
      */
     popupContainer: {
-      type: [String, Object] as PropType<
-        string | HTMLElement | null | undefined
-      >,
+      type: [String, Object] as PropType<string | HTMLElement>,
     },
     mode: {
       type: String as PropType<'date' | 'year' | 'quarter' | 'month' | 'week'>,
diff --git a/packages/web-vue/components/date-picker/range-picker.vue b/packages/web-vue/components/date-picker/range-picker.vue
index de9d922c5..e73e5c743 100644
--- a/packages/web-vue/components/date-picker/range-picker.vue
+++ b/packages/web-vue/components/date-picker/range-picker.vue
@@ -250,9 +250,7 @@ export default defineComponent({
       default: true,
     },
     popupContainer: {
-      type: [String, Object] as PropType<
-        string | HTMLElement | null | undefined
-      >,
+      type: [String, Object] as PropType<string | HTMLElement>,
     },
     locale: {
       type: Object as PropType<Record<string, any>>,
diff --git a/packages/web-vue/components/dropdown/dropdown-button.vue b/packages/web-vue/components/dropdown/dropdown-button.vue
index 31caf48a7..7a983eecd 100644
--- a/packages/web-vue/components/dropdown/dropdown-button.vue
+++ b/packages/web-vue/components/dropdown/dropdown-button.vue
@@ -92,9 +92,7 @@ export default defineComponent({
      * @en Mount container for popup
      */
     popupContainer: {
-      type: [String, Object] as PropType<
-        string | HTMLElement | null | undefined
-      >,
+      type: [String, Object] as PropType<string | HTMLElement>,
     },
     /**
      * @zh 是否禁用
diff --git a/packages/web-vue/components/image/preview-group.vue b/packages/web-vue/components/image/preview-group.vue
index a0b8639cc..8213e8857 100644
--- a/packages/web-vue/components/image/preview-group.vue
+++ b/packages/web-vue/components/image/preview-group.vue
@@ -129,7 +129,7 @@ export default defineComponent({
      * @en Set the mount point of the pop-up box, the same as the `to` of `teleport`, the default value is document.body
      */
     popupContainer: {
-      type: [Object, String] as PropType<HTMLElement | string>,
+      type: [String, Object] as PropType<string | HTMLElement>,
     },
   },
   emits: [
diff --git a/packages/web-vue/components/popconfirm/popconfirm.vue b/packages/web-vue/components/popconfirm/popconfirm.vue
index 5c5c41965..eb226b79f 100644
--- a/packages/web-vue/components/popconfirm/popconfirm.vue
+++ b/packages/web-vue/components/popconfirm/popconfirm.vue
@@ -183,7 +183,7 @@ export default defineComponent({
      * @en Mount container for popup
      */
     popupContainer: {
-      type: [String, Object] as PropType<string | HTMLElement | undefined>,
+      type: [String, Object] as PropType<string | HTMLElement>,
     },
     /**
      * @zh 触发 ok 事件前的回调函数。如果返回 false 则不会触发后续事件，也可使用 done 进行异步关闭。
diff --git a/packages/web-vue/components/popover/popover.vue b/packages/web-vue/components/popover/popover.vue
index 390ebf84b..3485ee719 100644
--- a/packages/web-vue/components/popover/popover.vue
+++ b/packages/web-vue/components/popover/popover.vue
@@ -119,9 +119,7 @@ export default defineComponent({
      * @en Mount container for pop-up box
      */
     popupContainer: {
-      type: [String, Object] as PropType<
-        string | HTMLElement | null | undefined
-      >,
+      type: [String, Object] as PropType<string | HTMLElement>,
     },
   },
   emits: {
diff --git a/packages/web-vue/components/tooltip/tooltip.vue b/packages/web-vue/components/tooltip/tooltip.vue
index 4f13eabd9..f5f986548 100644
--- a/packages/web-vue/components/tooltip/tooltip.vue
+++ b/packages/web-vue/components/tooltip/tooltip.vue
@@ -116,9 +116,7 @@ export default defineComponent({
      * @en Mount container for popup
      */
     popupContainer: {
-      type: [String, Object] as PropType<
-        string | HTMLElement | null | undefined
-      >,
+      type: [String, Object] as PropType<string | HTMLElement>,
     },
   },
   emits: {
diff --git a/packages/web-vue/components/tree-select/interface.ts b/packages/web-vue/components/tree-select/interface.ts
index ac180ed4e..1d417e13b 100644
--- a/packages/web-vue/components/tree-select/interface.ts
+++ b/packages/web-vue/components/tree-select/interface.ts
@@ -69,7 +69,7 @@ export interface TreeSelectProps {
   filterTreeNode: FilterTreeNode | undefined;
   loadMore: LoadMore | undefined;
   disableFilter: boolean;
-  popupContainer: string | HTMLElement | null | undefined;
+  popupContainer?: string | HTMLElement;
   fallbackOption: FallbackOption;
   showHeaderOnEmpty?: boolean;
   showFooterOnEmpty?: boolean;
diff --git a/packages/web-vue/components/tree-select/tree-select.vue b/packages/web-vue/components/tree-select/tree-select.vue
index 4ddde27eb..c1f6851e2 100644
--- a/packages/web-vue/components/tree-select/tree-select.vue
+++ b/packages/web-vue/components/tree-select/tree-select.vue
@@ -371,7 +371,7 @@ export default defineComponent({
      * @en Mount container for pop-up box
      */
     popupContainer: {
-      type: [String, Object] as PropType<string | HTMLElement | undefined>,
+      type: [String, Object] as PropType<string | HTMLElement>,
     },
     /**
      * @zh 为 value 中找不到匹配项的 key 定义节点数据