diff --git a/packages/components/popover/popover.wxml b/packages/components/popover/popover.wxml
index 07e54ee87..428fc948a 100644
--- a/packages/components/popover/popover.wxml
+++ b/packages/components/popover/popover.wxml
@@ -16,7 +16,7 @@
   wx:if="{{realVisible}}"
   id="{{classPrefix}}-content"
   style="{{style}} {{contentStyle}} {{customStyle}}"
-  class="{{class}} {{classPrefix}} {{transitionClass}} {{prefix}}-class {{classPrefix}}--placement-{{_placement}} {{fixed ? classPrefix + '--fixed' : ''}}"
+  class="class {{classPrefix}} {{transitionClass}} {{prefix}}-class {{classPrefix}}--placement-{{_placement}} {{fixed ? classPrefix + '--fixed' : ''}}"
 >
   <view
     class="{{classPrefix}}__content {{classPrefix}}--{{theme}} {{prefix}}-class-content {{showArrow ? classPrefix + '__content--arrow' : ''}}"
diff --git a/packages/tdesign-miniprogram/.changelog/pr-4499.md b/packages/tdesign-miniprogram/.changelog/pr-4499.md
new file mode 100644
index 000000000..558d81a9f
--- /dev/null
+++ b/packages/tdesign-miniprogram/.changelog/pr-4499.md
@@ -0,0 +1,6 @@
+---
+pr_number: 4499
+contributor: anlyyao
+---
+
+- fix(Popover): 修复外部样式类 `class` 无效 @anlyyao ([#4499](https://github.com/Tencent/tdesign-miniprogram/pull/4499))