diff --git a/src/less/base/single/button/switch.less b/src/less/base/single/button/switch.less
index 21206d89e..f308cfceb 100644
--- a/src/less/base/single/button/switch.less
+++ b/src/less/base/single/button/switch.less
@@ -18,4 +18,10 @@
   & .content-tip {
     color: @color-bi-font-switch-tip;
   }
-}
\ No newline at end of file
+}
+
+.bi-theme-dark {
+  .bi-switch {
+    background-color: @color-bi-background-switch-theme-dark;
+  }
+}