diff --git a/src/forge/Main/tree/Index.jsx b/src/forge/Main/tree/Index.jsx
index b9897d4a..ae3117a8 100644
--- a/src/forge/Main/tree/Index.jsx
+++ b/src/forge/Main/tree/Index.jsx
@@ -45,7 +45,6 @@ function Index(props) {
         const {branches, total_count} = result.data;
         setTotal(total_count)
         setList(branches);
-        setNewFormBranchName(branches[0].name);
       }
       setIsSpin(false);
     }).catch(error=>{setIsSpin(false);})
@@ -56,6 +55,7 @@ function Index(props) {
       const { author, name} = projectDetail;
       document.title = `所有分支-${author.name}/${name}`;
     }
+    setNewFormBranchName(projectDetail && projectDetail.default_branch);
   }, [projectDetail])
 
 
@@ -387,7 +387,7 @@ function Index(props) {
           <Input placeholder='请输入分支名称' className='createBranchInput' onChange={checkNewBranchName} maxLength={100}/>
           <div className='newBranchError mt5'>{newBranchError}</div>
           <div className='font-15 createBranchLabel mt20'>分支起点</div>
-          <Select showSearch style={{width: '340px'}} className='createBranchInput' placeholder="请选择分支起点" onChange={(value)=>{setNewFormBranchName(value)}} getPopupContainer={triggerNode => triggerNode.parentNode}>
+          <Select showSearch style={{width: '340px'}} className='createBranchInput' placeholder="请选择分支起点" value={newFormBranchName} onChange={(value)=>{setNewFormBranchName(value)}} getPopupContainer={triggerNode => triggerNode.parentNode}>
             {branchList && branchList.map((item, index)=>{
               return <Select.Option value={item.name} key={index}>{item.name}</Select.Option>
             })}