diff --git a/src/input/README.en-US.md b/src/input/README.en-US.md
index 4c2f3645f..eb3fe493f 100644
--- a/src/input/README.en-US.md
+++ b/src/input/README.en-US.md
@@ -74,6 +74,8 @@ Name | Default Value | Description
 --td-input-disabled-text-color | @text-color-disabled | - 
 --td-input-error-text-color | @error-color | - 
 --td-input-error-tips-color | @error-color | - 
+--td-input-label-max-width | 5em | - 
+--td-input-label-min-width | 2em | - 
 --td-input-label-text-color | @font-gray-1 | - 
 --td-input-placeholder-text-color | @text-color-placeholder | - 
 --td-input-prefix-icon-color | @font-gray-1 | - 
diff --git a/src/input/README.md b/src/input/README.md
index fb35eb8ef..82c9c9bdf 100644
--- a/src/input/README.md
+++ b/src/input/README.md
@@ -159,6 +159,8 @@ t-class-tips | 提示样式类
 --td-input-disabled-text-color | @text-color-disabled | - 
 --td-input-error-text-color | @error-color | - 
 --td-input-error-tips-color | @error-color | - 
+--td-input-label-max-width | 5em | - 
+--td-input-label-min-width | 2em | - 
 --td-input-label-text-color | @font-gray-1 | - 
 --td-input-placeholder-text-color | @text-color-placeholder | - 
 --td-input-prefix-icon-color | @font-gray-1 | - 
diff --git a/src/input/__test__/__snapshots__/index.test.js.snap b/src/input/__test__/__snapshots__/index.test.js.snap
index 2b1c4656a..d6a8883c1 100644
--- a/src/input/__test__/__snapshots__/index.test.js.snap
+++ b/src/input/__test__/__snapshots__/index.test.js.snap
@@ -17,13 +17,9 @@ exports[`input props : clearable && label && suffix 1`] = `
       />
       <wx-view
         ariaHidden="{{true}}"
-        class="t-input__label"
+        class="t-input__label t-class-label"
       >
-        <wx-text
-          class="t-class-label"
-        >
-          tdesign
-        </wx-text>
+        tdesign
       </wx-view>
     </wx-view>
     <wx-view
@@ -146,7 +142,7 @@ exports[`input slots : label 1`] = `
       />
       <wx-view
         ariaHidden="{{true}}"
-        class="t-input__label"
+        class="t-input__label t-class-label"
       >
         <wx-text
           slot="label"
diff --git a/src/input/input.less b/src/input/input.less
index 5e89acbce..3fd4d6a55 100644
--- a/src/input/input.less
+++ b/src/input/input.less
@@ -20,6 +20,8 @@
 @input-prefix-icon-color: var(--td-input-prefix-icon-color, @font-gray-1); // // 输入框前缀图标颜色
 @input-suffix-icon-color: var(--td-input-suffix-icon-color, @font-gray-3); // 输入框后缀图标颜色
 @input-label-text-color: var(--td-input-label-text-color, @font-gray-1); // 左侧文本颜色
+@input-label-min-width: var(--td-input-label-min-width, 2em);
+@input-label-max-width: var(--td-input-label-max-width, 5em);
 @input-suffix-text-color: var(--td-input-suffix-text-color, @font-gray-1); // 后置图标前的后置内容文本颜色
 @input-disabled-text-color: var(--td-input-disabled-text-color, @text-color-disabled); // 输入框禁用态文本颜色
 @input-border-radius: var(--td-input-border-radius, @radius-default); // 边框圆角大小
@@ -55,8 +57,8 @@
   }
 
   &__label:not(:empty) {
-    min-width: 2em;
-    max-width: 5em;
+    min-width: @input-label-min-width;
+    max-width: @input-label-max-width;
     font-size: @font-size-m;
     line-height: 48rpx;
     color: @input-label-text-color;
diff --git a/src/input/input.wxml b/src/input/input.wxml
index 3a50ba4b1..2313a21a2 100644
--- a/src/input/input.wxml
+++ b/src/input/input.wxml
@@ -17,9 +17,9 @@
         data="{{tClass: prefix + '-class-prefix-icon', ariaHidden: true, ..._prefixIcon}}"
       />
     </view>
-    <view class="{{classPrefix}}__label" aria-hidden>
+    <view class="{{classPrefix}}__label {{prefix}}-class-label" aria-hidden>
       <slot name="label" />
-      <text wx:if="{{label}}" class="{{prefix}}-class-label">{{label}}</text>
+      <block wx:if="{{label}}">{{label}}</block>
     </view>
   </view>