diff --git a/packages/amis-ui/scss/components/form/_tree.scss b/packages/amis-ui/scss/components/form/_tree.scss
index 30378fc84..c997946a4 100644
--- a/packages/amis-ui/scss/components/form/_tree.scss
+++ b/packages/amis-ui/scss/components/form/_tree.scss
@@ -22,7 +22,6 @@
   }
 
   & > .#{$ns}Tree {
-    max-height: var(--Tree-max-height);
     overflow: auto;
   }