diff --git a/frontend/app/components/platform/CreateScriptModal.tsx b/frontend/app/components/platform/CreateScriptModal.tsx
index 9c8a919..b02ae45 100644
--- a/frontend/app/components/platform/CreateScriptModal.tsx
+++ b/frontend/app/components/platform/CreateScriptModal.tsx
@@ -13,7 +13,11 @@ type CreateScriptModalProps = {
   open: boolean;
   creating: boolean;
   form: NewScriptForm;
-  scripts: Array<{ script_type: ScriptType; script_name: string }>;
+  scripts: Array<{
+    script_type: ScriptType;
+    script_name: string;
+    relative_path?: string;
+  }>;
   onFormChange: (form: NewScriptForm) => void;
   onSubmit: (event: FormEvent) => void;
   onClose: () => void;
@@ -35,10 +39,21 @@ export function CreateScriptModal({
   const normalizedName = requestedName.toLocaleLowerCase().endsWith(suffix)
     ? requestedName
     : `${requestedName}${suffix}`;
-  const duplicate = scripts.some((script) =>
-    script.script_type === form.scriptType
-    && script.script_name.toLocaleLowerCase() === normalizedName.toLocaleLowerCase()
-  );
+  const duplicate = scripts.some((script) => {
+    if (script.script_type !== form.scriptType) return false;
+    if (script.script_name.toLocaleLowerCase()
+      !== normalizedName.toLocaleLowerCase()) return false;
+    // Same name in a different subdirectory is allowed; mirror the
+    // backend name_clash scope (StorageObjects.relative_path JOIN).
+    if (!script.relative_path) return true;
+    const segments = script.relative_path.replaceAll("\\", "/")
+      .split("/").slice(2);
+    const existingUserPath = segments.join("/");
+    const existingParent = existingUserPath.includes("/")
+      ? existingUserPath.slice(0, existingUserPath.lastIndexOf("/"))
+      : "";
+    return existingParent === form.parentPath;
+  });
 
   return (
     <div className="modal-backdrop" role="presentation">
diff --git a/frontend/app/features/platform/ScriptsPage.tsx b/frontend/app/features/platform/ScriptsPage.tsx
index 0ae8f90..86038bc 100644
--- a/frontend/app/features/platform/ScriptsPage.tsx
+++ b/frontend/app/features/platform/ScriptsPage.tsx
@@ -392,6 +392,7 @@ export default function ScriptsPage() {
         scripts={scripts.map((s) => ({
           script_type: s.script_type,
           script_name: s.script_name,
+          relative_path: s.relative_path,
         }))}
         onFormChange={setCreateForm}
         onSubmit={handleCreateSubmit}
diff --git a/frontend/app/features/platform/state/scriptWorkspaceStore.ts b/frontend/app/features/platform/state/scriptWorkspaceStore.ts
index 24786f4..c95fef3 100644
--- a/frontend/app/features/platform/state/scriptWorkspaceStore.ts
+++ b/frontend/app/features/platform/state/scriptWorkspaceStore.ts
@@ -758,12 +758,19 @@ export const useScriptWorkspaceStore = create<State>((set, get) => {
       const normalizedName = requestedName.toLocaleLowerCase().endsWith(suffix)
         ? requestedName
         : `${requestedName}${suffix}`;
-      const duplicate = get().scripts.some(
-        (script) =>
-          script.script_type === form.scriptType
-          && script.script_name.toLocaleLowerCase()
-            === normalizedName.toLocaleLowerCase(),
-      );
+      const duplicate = get().scripts.some((script) => {
+        if (script.script_type !== form.scriptType) return false;
+        if (script.script_name.toLocaleLowerCase()
+          !== normalizedName.toLocaleLowerCase()) return false;
+        // Same name in a different subdirectory is allowed: mirror the
+        // backend name_clash check, which JOINs StorageObjects and scopes
+        // by relative_path.
+        const existingUserPath = ownedScriptPath(script);
+        const existingParent = existingUserPath.includes("/")
+          ? existingUserPath.slice(0, existingUserPath.lastIndexOf("/"))
+          : "";
+        return existingParent === form.parentPath;
+      });
       if (duplicate) {
         pushToast("error", `${normalizedName} 已存在，请更换名称`);
         return null;