diff --git a/src/tab/README.md b/src/tab/README.md
index 81422f577..1d64cf9fb 100644
--- a/src/tab/README.md
+++ b/src/tab/README.md
@@ -196,8 +196,8 @@ In scrollspy mode, the list of content will be tiled
 | v-model | Index of active tab | *number \| string* | `0` |
 | type | Can be set to `line` `card` | *string* | `line` |
 | color | Tab color | *string* | `#ee0a24` |
-| duration | Toggle tab's animation time | *number* | `0.3` | - |
 | background | Background color | *string* | `white` |
+| duration | Toggle tab's animation time | *number \| string* | `0.3` | - |
 | line-width | Width of tab line | *number \| string* | Width of active tab |
 | line-height | Height of tab line | *number \| string* | `3px` |
 | animated | Whether to change tabs with animation | *boolean* | `false` |
@@ -207,8 +207,8 @@ In scrollspy mode, the list of content will be tiled
 | swipeable | Whether to switch tabs with swipe gestrue in the content | *boolean* | `false` |
 | lazy-render | Whether to enable tab content lazy render | *boolean* | `true` |
 | scrollspy `v2.3.0` | Whether to use scrollspy mode | *boolean* | `false` |
-| offset-top | Offset top when use sticky mode | *number* | `0` |
-| swipe-threshold | Set swipe tabs threshold | *number* | `4` | - |
+| offset-top | Offset top when use sticky mode | *number \| string* | `0` |
+| swipe-threshold | Set swipe tabs threshold | *number \| string* | `4` | - |
 | title-active-color | Title active color | *string* | - |
 | title-inactive-color | Title inactive color | *string* | - |
 
diff --git a/src/tab/README.zh-CN.md b/src/tab/README.zh-CN.md
index f7173394b..234ea4660 100644
--- a/src/tab/README.zh-CN.md
+++ b/src/tab/README.zh-CN.md
@@ -200,10 +200,10 @@ export default {
 | v-model | 绑定当前选中标签的标识符 | *number \| string* | `0` |
 | type | 样式风格类型，可选值为`card` | *string* | `line` |
 | color | 标签主题色 | *string* | `#ee0a24` |
-| duration | 动画时间，单位秒 | *number* | `0.3` |
 | background | 标签栏背景色 | *string* | `white` |
-| line-width | 底部条宽度，默认单位 px | *number \| string* | `auto` |
-| line-height | 底部条高度，默认单位 px | *number \| string* | `3px` |
+| duration | 动画时间，单位秒 | *number \| string* | `0.3` |
+| line-width | 底部条宽度，默认单位`px` | *number \| string* | `auto` |
+| line-height | 底部条高度，默认单位`px` | *number \| string* | `3px` |
 | animated | 是否开启切换标签内容时的转场动画 | *boolean* | `false` |
 | border | 是否显示标签栏外边框，仅在`type="line"`时有效 | *boolean* | `true` |
 | ellipsis | 是否省略过长的标题文字 | *boolean* | `true` |
@@ -211,8 +211,8 @@ export default {
 | swipeable | 是否开启手势滑动切换 | *boolean* | `false` |
 | lazy-render | 是否开启延迟渲染（首次切换到标签时才触发内容渲染） | *boolean* | `true` |
 | scrollspy `v2.3.0` | 是否开启滚动导航 | *boolean* | `false` |
-| offset-top | 粘性定位布局下与顶部的最小距离，单位 px | *number* | `0` |
-| swipe-threshold | 滚动阈值，标签数量超过阈值时开始横向滚动 | *number* | `4` |
+| offset-top | 粘性定位布局下与顶部的最小距离，单位`px` | *number \| string* | `0` |
+| swipe-threshold | 滚动阈值，标签数量超过阈值时开始横向滚动 | *number \| string* | `4` |
 | title-active-color | 标题选中态颜色 | *string* | - |
 | title-inactive-color | 标题默认态颜色 | *string* | - |
 
diff --git a/src/tabs/Content.js b/src/tabs/Content.js
index ed151ddef..a65bf0d47 100644
--- a/src/tabs/Content.js
+++ b/src/tabs/Content.js
@@ -9,7 +9,7 @@ export default createComponent({
 
   props: {
     count: Number,
-    duration: Number,
+    duration: [Number, String],
     animated: Boolean,
     swipeable: Boolean,
     currentIndex: Number,
diff --git a/src/tabs/Title.js b/src/tabs/Title.js
index 1ab826882..aa55aba1d 100644
--- a/src/tabs/Title.js
+++ b/src/tabs/Title.js
@@ -16,7 +16,7 @@ export default createComponent({
     scrollable: Boolean,
     activeColor: String,
     inactiveColor: String,
-    swipeThreshold: Number,
+    swipeThreshold: [Number, String],
   },
 
   computed: {
diff --git a/src/tabs/index.js b/src/tabs/index.js
index 4fed80144..dbdd1d45c 100644
--- a/src/tabs/index.js
+++ b/src/tabs/index.js
@@ -66,11 +66,11 @@ export default createComponent({
       default: true,
     },
     duration: {
-      type: Number,
+      type: [Number, String],
       default: 0.3,
     },
     offsetTop: {
-      type: Number,
+      type: [Number, String],
       default: 0,
     },
     lazyRender: {
@@ -78,7 +78,7 @@ export default createComponent({
       default: true,
     },
     swipeThreshold: {
-      type: Number,
+      type: [Number, String],
       default: 4,
     },
   },
@@ -116,7 +116,7 @@ export default createComponent({
 
     scrollOffset() {
       if (this.sticky) {
-        return this.offsetTop + this.tabHeight;
+        return +this.offsetTop + this.tabHeight;
       }
       return 0;
     },
@@ -284,7 +284,7 @@ export default createComponent({
       const title = titles[this.currentIndex].$el;
       const to = title.offsetLeft - (nav.offsetWidth - title.offsetWidth) / 2;
 
-      scrollLeftTo(nav, to, immediate ? 0 : this.duration);
+      scrollLeftTo(nav, to, immediate ? 0 : +this.duration);
     },
 
     onSticktScroll(params) {
@@ -299,7 +299,7 @@ export default createComponent({
         const el = instance && instance.$el;
         if (el) {
           const to = Math.ceil(getElementTop(el)) - this.scrollOffset;
-          scrollTopTo(to, this.duration, () => {
+          scrollTopTo(to, +this.duration, () => {
             this.clickedScroll = false;
           });
         }