diff --git a/packages/calendar/README.md b/packages/calendar/README.md
index 5844cbdc..05349ae5 100644
--- a/packages/calendar/README.md
+++ b/packages/calendar/README.md
@@ -257,10 +257,12 @@ Page({
 
 ```css
 .calendar {
-  --calendar-height: 500px;
+  --calendar-height: 618px;
 }
 ```
 
+> Tips: 注意，在自定义calendar的高度时，需要确保，滚动到当前月份时，所有的日期要展现在.van-calendar__body内，否则可能会出现滚动时头部月份与当前月份不同步的情况。目前平铺型预设高度618px,弹窗型高度90%。
+
 ## API
 
 ### Props
diff --git a/packages/calendar/demo/index.less b/packages/calendar/demo/index.less
index c4b0001f..ad853ccc 100644
--- a/packages/calendar/demo/index.less
+++ b/packages/calendar/demo/index.less
@@ -1,3 +1,3 @@
 .tiled-calendar {
-  --calendar-height: 500px;
+  --calendar-height: 618px;
 }
diff --git a/packages/common/style/var.less b/packages/common/style/var.less
index 762e9314..719bd951 100644
--- a/packages/common/style/var.less
+++ b/packages/common/style/var.less
@@ -123,7 +123,7 @@
 // Calendar
 @calendar-height: 100%;
 @calendar-background-color: @white;
-@calendar-popup-height: 80%;
+@calendar-popup-height: 90%;
 @calendar-header-box-shadow: 0 2px 10px rgba(125, 126, 128, 0.16);
 @calendar-header-title-height: 44px;
 @calendar-header-title-font-size: @font-size-lg;