diff --git a/frontend/src/app/(app)/fund/page.tsx b/frontend/src/app/(app)/fund/page.tsx
index c07c63f..df55c4c 100644
--- a/frontend/src/app/(app)/fund/page.tsx
+++ b/frontend/src/app/(app)/fund/page.tsx
@@ -376,7 +376,7 @@ export default function FundPage() {
           <div className="space-y-4 pt-2">
             <div>
               <Label>类型</Label>
-              <Select value={formType} onValueChange={(v) => { setFormType(v); setFormCategory(""); }}>
+              <Select value={formType} onValueChange={(v) => { if (v) { setFormType(v); setFormCategory(""); } }}>
                 <SelectTrigger className="mt-1">
                   <SelectValue>{FUND_TYPES[formType as keyof typeof FUND_TYPES]}</SelectValue>
                 </SelectTrigger>