diff --git a/src/components/DiyEditor/components/ComponentLibrary.vue b/src/components/DiyEditor/components/ComponentLibrary.vue
index b8bd1ec3..fdb0b1de 100644
--- a/src/components/DiyEditor/components/ComponentLibrary.vue
+++ b/src/components/DiyEditor/components/ComponentLibrary.vue
@@ -95,6 +95,7 @@ const handleCloneComponent = (component: DiyComponent<any>) => {
 .editor-left {
   z-index: 1;
   flex-shrink: 0;
+  user-select: none;
   box-shadow: 8px 0 8px -8px rgb(0 0 0 / 12%);
 
   :deep(.el-collapse) {