diff --git a/packages/cell/README.md b/packages/cell/README.md
index c017dde3..b982311e 100644
--- a/packages/cell/README.md
+++ b/packages/cell/README.md
@@ -96,7 +96,7 @@
 |-----------|-----------|-----------|-------------|
 | icon | 左侧图标，可选值见 Icon 组件 | `String` | - |
 | title | 左侧标题 | `String | Number` | - |
-| titleWidth | 标题宽度 | `Number` | - |
+| titleWidth | 标题宽度 | `String` | - |
 | value | 右侧内容 | `String | Number` | - |
 | label | 标题下方的描述信息 | `String` | - |
 | border | 是否显示下边框 | `Boolean` | `true` |
diff --git a/packages/field/README.md b/packages/field/README.md
index cc3287f2..f0f021c9 100644
--- a/packages/field/README.md
+++ b/packages/field/README.md
@@ -133,7 +133,7 @@
 | readonly | 是否只读 | `Boolean` | `false` |
 | clearable | 是否启用清除控件 | `Boolean` | `false` |
 | required | 是否显示表单必填星号 | `Boolean` | `false` |
-| titleWidth | 标题宽度 | `Number` | `90` |
+| titleWidth | 标题宽度 | `String` | `90px` |
 | maxlength | 最大输入长度，设置为 -1 的时候不限制最大长度 | `Number` | `-1` |
 | placeholder | 输入框为空时占位符 | `String` | - |
 | is-link | 是否展示右侧箭头并开启点击反馈 | `Boolean` | `false` |
diff --git a/packages/field/index.js b/packages/field/index.js
index ca6be95e..268c7303 100644
--- a/packages/field/index.js
+++ b/packages/field/index.js
@@ -55,8 +55,8 @@ Component({
       value: true
     },
     titleWidth: {
-      type: Number,
-      value: 90
+      type: String,
+      value: '90px'
     }
   },