diff --git a/devui/tag-input/src/tag-input.tsx b/devui/tag-input/src/tag-input.tsx
index 8ed491cbe549f9e6518decf9d53e49d6fa5abcd4..192d180bc501692017a0bab9aaddc21ee780891f 100644
--- a/devui/tag-input/src/tag-input.tsx
+++ b/devui/tag-input/src/tag-input.tsx
@@ -137,6 +137,10 @@ export default defineComponent({
       mergedSuggestions.value.length === 0 && (tagInputVal.value = '');
     };
     const onInputKeydown = ($event: KeyboardEvent) => {
+      if (!tagInputVal.value) {
+        return;
+      }
+      
       switch ($event.key) {
         case KEYS_MAP.tab:
         case KEYS_MAP.enter:
diff --git a/docs/components/tag-input/index.md b/docs/components/tag-input/index.md
index 80bd047cb149732bdff969239b4df514a74174a6..bc04caa9a4c1f06ee37a23896d9348d05905812a 100644
--- a/docs/components/tag-input/index.md
+++ b/docs/components/tag-input/index.md
@@ -9,12 +9,13 @@
 ### 基本用法
 
 <d-tag-input
-  v-model:tags="state.tags"
-  v-model:suggestionList="state.suggestionList"
-  display-property="name"
-  placeholder="请输入名字"
-  no-data="暂无数据"
-></d-tag-input>
+v-model:tags="state.tags"
+v-model:suggestionList="state.suggestionList"
+display-property="name"
+placeholder="请输入名字"
+no-data="暂无数据"
+
+> </d-tag-input>
 
 ```html
 <d-tag-input
@@ -41,4 +42,27 @@ export default defineComponent({
     }
   }
 })
-</script>
\ No newline at end of file
+</script>
+
+:::
+
+### d-tags-input
+
+| 参数            | 类型      | 默认值                    | 说明                                 |
+| --------------- | --------- | ------------------------- | ------------------------------------ |
+| tags            | `Array`   | []                        | 必选，记录输入的标签和选择的标签列表 |
+| displayProperty | `String`  | `name`                    | 可选，列表项使用的属性名             |
+| placeholder     | `Boolean` |                           | 可选，输入框的 placeholder           |
+| maxTags         | `Number`  | `Number.MAX_SAFE_INTEGER` | 可选，输入标签内容的最大长度         |
+| maxTagsText     | `String`  |                           | 可选，-                              |
+| spellcheck      | `Boolean` | true                      | 可选，input 输入框是否开启拼写检查的 |
+| suggestionList  | `Array`   | []                        | 可选，下拉选项，默认可选择的标签列表 |
+| disabled        | `Boolean` | false                     | 是否禁用                             |
+| disabledText    | `String`  |                           | 可选，-                              |
+| noData          | `String`  |                           | 可选，-                              |
+
+### d-tags-input 事件
+
+| 参数        | 类型                | 说明                                                     |
+| ----------- | ------------------- | -------------------------------------------------------- |
+| valueChange | `EventEmitter<any>` | 当选中某个选项项后，将会调用此函数，参数为当前选择项的值  |