diff --git a/CHANGELOG.zh_CN.md b/CHANGELOG.zh_CN.md
index d430a5ac3020928baaf3789bc634815315732650..23c3bbff85c32611aa42d7565c2bf7d6d06db213 100644
--- a/CHANGELOG.zh_CN.md
+++ b/CHANGELOG.zh_CN.md
@@ -17,7 +17,8 @@
 
 ### 🐛 Bug Fixes
 
--修复表格 i18n 错误
+- 修复表格 i18n 错误
+- 修复菜单图标大小不一致
 
 ## 2.0.0-rc.12 (2020-11-30)
 
diff --git a/src/components/Menu/src/index.less b/src/components/Menu/src/index.less
index 04b312562adb17df5130244d2edaa59d78c21fb7..3016d537dd0a10557fffcaaa5e7162ff06ff4e13 100644
--- a/src/components/Menu/src/index.less
+++ b/src/components/Menu/src/index.less
@@ -212,6 +212,10 @@
     background: @sider-dark-bg-color;
     .active-menu-style();
 
+    .menu-item-icon.app-iconify {
+      display: inline-block !important;
+    }
+
     .ant-menu-item.ant-menu-item-selected.basic-menu-menu-item__level1,
     .ant-menu-submenu-selected.basic-menu-menu-item__level1 {
       color: @white;
@@ -232,6 +236,10 @@
 
     .basic-menu-item__level3:not(.ant-menu-item-selected) {
       background-color: @sider-dark-lighten-2-bg-color;
+
+      .ant-menu-item {
+        background-color: @sider-dark-lighten-2-bg-color;
+      }
     }
 
     .ant-menu-submenu-title {
@@ -253,6 +261,10 @@
     overflow-x: hidden;
     border-right: none;
 
+    .menu-item-icon.app-iconify {
+      display: inline-block !important;
+    }
+
     // .ant-menu-item-selected {
     //   background: fade(@primary-color, 18%);
     // }
diff --git a/src/layouts/default/header/LayoutMultipleHeader.less b/src/layouts/default/header/LayoutMultipleHeader.less
index 877e42f13811bdcb21b1181bdec2fa80fde1d670..dc426e3c9d0b4e2022f01e1cc4b1c23cd5c70eab 100644
--- a/src/layouts/default/header/LayoutMultipleHeader.less
+++ b/src/layouts/default/header/LayoutMultipleHeader.less
@@ -1,6 +1,9 @@
 .multiple-tab-header {
   flex: 0 0 auto;
-  margin-left: -1px;
+
+  &.dark {
+    margin-left: -1px;
+  }
 
   &.fixed {
     position: fixed;
diff --git a/src/layouts/default/header/LayoutMultipleHeader.tsx b/src/layouts/default/header/LayoutMultipleHeader.tsx
index 85c0285b8368b0848f4c99d4d69725ead730d04c..231cf822a80092e7388116999d1e65a53bb74056 100644
--- a/src/layouts/default/header/LayoutMultipleHeader.tsx
+++ b/src/layouts/default/header/LayoutMultipleHeader.tsx
@@ -29,6 +29,7 @@ export default defineComponent({
       getShowFullHeaderRef,
       getShowHeader,
       getUnFixedAndFull,
+      getHeaderTheme,
     } = useHeaderSetting();
 
     const { getFullContent } = useFullContent();
@@ -110,7 +111,7 @@ export default defineComponent({
           {unref(getIsShowPlaceholderDom) && <div style={unref(getPlaceholderDomStyle)} />}
           <div
             style={unref(getWrapStyle)}
-            class={['multiple-tab-header', { fixed: unref(getIsFixed) }]}
+            class={['multiple-tab-header', unref(getHeaderTheme), { fixed: unref(getIsFixed) }]}
           >
             {unref(getShowInsetHeaderRef) && <LayoutHeader ref={headerElRef} />}
             {unref(showTabsRef) && <MultipleTabs ref={tabElRef} />}