diff --git a/packages/notice-bar/README.md b/packages/notice-bar/README.md
index 51d9ac75..5a61c3a8 100644
--- a/packages/notice-bar/README.md
+++ b/packages/notice-bar/README.md
@@ -100,7 +100,7 @@
 | color | 通知文本颜色 | _string_ | `#ed6a0c` |
 | background | 滚动条背景 | _string_ | `#fffbe8` |
 | left-icon | 左侧[图标名称](#/icon)或图片链接 | _string_ | - |
-| delay | 动画延迟时间 (s) | _number_ | `1` |
+| delay | 动画延迟时间 (ms) | _number_ | `1` |
 | speed | 滚动速率 (px/s) | _number_ | `60` |
 | scrollable | 是否开启滚动播放，内容长度溢出时默认开启 | _boolean_ | - |
 | wrapable | 是否开启文本换行，只在禁用滚动时生效 | _boolean_ | `false` |