diff --git a/electron/main/backend/submitter.ts b/electron/main/backend/submitter.ts
index 6397f9d1..752906e6 100644
--- a/electron/main/backend/submitter.ts
+++ b/electron/main/backend/submitter.ts
@@ -1420,8 +1420,9 @@ export function registerSubmitterHandlers(
       // arch 由前端解析 deb 时获取并传入，无需再次调用 dpkg-deb
       const debArch = String(dataObj.arch || "amd64");
       const pkgVersion = String(dataObj.version || "0.0.0");
-      const debPkgName = String(dataObj.pkgname || "unknown");
-      const formFileName = `${debPkgName}_${pkgVersion}_${debArch}.deb`;
+      const debPkgName = String(dataObj.pkgname || "unknown").toLowerCase();
+      const formFileName =
+        `${debPkgName}_${pkgVersion}_${debArch}.deb`.toLowerCase();
       logger.info(
         { formFileName, debArch },
         "[Submitter] Constructed file_name",
@@ -1689,7 +1690,7 @@ export function registerSubmitterHandlers(
       }
 
       const dataObj = formData as Record<string, unknown>;
-      const pkgname = String(dataObj.pkgname || "");
+      const pkgname = String(dataObj.pkgname || "").toLowerCase();
       const packageName = String(dataObj.name || "");
       const packageVersion = String(dataObj.version || "");
       const packageCategory = String(dataObj.category || "");
@@ -1880,7 +1881,8 @@ export function registerSubmitterHandlers(
         "[Submitter] Deb metadata parsed",
       );
 
-      const packDebFileName = `${debPkgName}_${debVersion}_${debArch}.deb`;
+      const packDebFileName =
+        `${debPkgName}_${debVersion}_${debArch}.deb`.toLowerCase();
       logger.info(
         {
           from: debFilePath,
@@ -1931,7 +1933,7 @@ export function registerSubmitterHandlers(
       sendPackageProgress("tar", 85, "正在打包 tar.gz...");
       logger.info("[Submitter] Starting tar...");
 
-      const tarFileName = `${pkgname}-${storeArch}.tar.gz`;
+      const tarFileName = `${pkgname.toLowerCase()}-${storeArch.toLowerCase()}.tar.gz`;
       const tarOutputPath = path.join(baseTempDir, tarFileName);
       try {
         await execAsync(
diff --git a/src/components/SubmitterWindow.vue b/src/components/SubmitterWindow.vue
index c6ad0c71..fa0eb1a3 100644
--- a/src/components/SubmitterWindow.vue
+++ b/src/components/SubmitterWindow.vue
@@ -266,7 +266,10 @@
             class="hidden"
             @change="handleScreenshotSelect"
           />
-          <p v-if="mediaError" class="mt-2 text-sm text-red-600 dark:text-red-400">
+          <p
+            v-if="mediaError"
+            class="mt-2 text-sm text-red-600 dark:text-red-400"
+          >
             {{ mediaError }}
           </p>
         </div>
@@ -653,7 +656,9 @@
                 </span>
               </div>
               <div class="text-sm text-slate-500 dark:text-slate-400 mt-1">
-                输出: {{ formData.pkgname }}-{{ arch.store }}.tar.gz
+                输出: {{ formData.pkgname.toLowerCase() }}-{{
+                  arch.store
+                }}.tar.gz
               </div>
             </button>
           </div>
@@ -908,7 +913,8 @@ const getHistoryArch = (
 ): "amd64" | "arm64" | "loong64" | "other" => {
   if (store === "store" || store.startsWith("amd64-")) return "amd64";
   if (store === "aarch64-store" || store.startsWith("arm64-")) return "arm64";
-  if (store === "loong64-store" || store.startsWith("loong64-")) return "loong64";
+  if (store === "loong64-store" || store.startsWith("loong64-"))
+    return "loong64";
   return "other";
 };
 
@@ -1138,7 +1144,11 @@ const updateFormTags = () => {
 };
 
 const openSubmissionQueue = (): void => {
-  window.open("https://upload.spark-app.store/", "_blank", "noopener,noreferrer");
+  window.open(
+    "https://upload.spark-app.store/",
+    "_blank",
+    "noopener,noreferrer",
+  );
 };
 
 const selectDebFile = async () => {
@@ -1190,7 +1200,9 @@ const searchHistoryApp = async () => {
     console.log("[Submitter] availableArchs before:", availableArchs.value);
     console.log("[Submitter] showArchDialog before:", showArchDialog.value);
 
-    availableArchs.value = sortHistoryArchs(historyResult.data as HistoryArchInfo[]);
+    availableArchs.value = sortHistoryArchs(
+      historyResult.data as HistoryArchInfo[],
+    );
     console.log("[Submitter] availableArchs after:", availableArchs.value);
     console.log(
       "[Submitter] availableArchs length:",
@@ -1401,7 +1413,9 @@ const handleDrop = async (event: DragEvent) => {
         filePath = window.electronUtils.getPathForFile(file);
         console.log("[Submitter] File path from electronUtils:", filePath);
       } catch {
-        console.warn("[Submitter] electronUtils.getPathForFile failed, trying fallback");
+        console.warn(
+          "[Submitter] electronUtils.getPathForFile failed, trying fallback",
+        );
         const textUriList = event.dataTransfer?.getData("text/uri-list");
         const textPlain = event.dataTransfer?.getData("text/plain");
         filePath = textUriList || textPlain || "";
@@ -1504,8 +1518,7 @@ const selectIconFile = () => {
 
 const isPngFile = (file: File): boolean => {
   return (
-    file.type === "image/png" ||
-    (file.type === "" && /\.png$/i.test(file.name))
+    file.type === "image/png" || (file.type === "" && /\.png$/i.test(file.name))
   );
 };