diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0289b3078f0042600cac9249d6438d58608d5e29..c77e13c6520515372adddf3e3074dcc0f01e516b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@
 - 修复菜单项svg图标样式异常
 - 修复表格单击事件在双击时重复触发
 - 修复路由快速切换时，导航标签页显示异常
+- 修复工具栏首项+分组展开模式下，当行为组仅有两项时下拉未绘制
 
 ## [0.7.40-alpha.14] - 2025-04-24
 
diff --git a/src/control/toolbar/toolbar.tsx b/src/control/toolbar/toolbar.tsx
index 3a82689acd6b47becac9728618c96ebc00e0ede2..2bce5a27e409812f3ff0471ab43a33aba1076735 100644
--- a/src/control/toolbar/toolbar.tsx
+++ b/src/control/toolbar/toolbar.tsx
@@ -415,7 +415,7 @@ export const ToolbarControl = defineComponent({
         if (firstIndex !== -1) {
           const firstItem = uiactionGroupDetails.slice(firstIndex, 1);
           const remainders = uiactionGroupDetails.slice(firstIndex + 1);
-          const enableDropdown = remainders.length > 1;
+          const enableDropdown = remainders.length > 0;
           const groupButtonStyle = (item as IDETBGroupItem).buttonStyle || '';
           return (
             <el-dropdown