diff --git a/src/components/game-distribution/gamePublishAssets.ts b/src/components/game-distribution/gamePublishAssets.ts
index 831252f81..3a1c1e17f 100644
--- a/src/components/game-distribution/gamePublishAssets.ts
+++ b/src/components/game-distribution/gamePublishAssets.ts
@@ -147,6 +147,7 @@ export function revokeGamePublishImagePreview(
 export async function resolveGamePublishImagePreview(
   objectKey: string,
   gameId?: string,
+  signal?: AbortSignal,
 ) {
   const normalizedKey = objectKey.trim();
   if (!normalizedKey) return '';
@@ -157,10 +158,12 @@ export async function resolveGamePublishImagePreview(
           normalizedGameId,
           normalizedKey,
           GAME_PUBLISH_IMAGE_PREVIEW_EXPIRE_SECONDS,
+          signal,
         )
       : await getGameDistributionMediaReadUrl(
           normalizedKey,
           GAME_PUBLISH_IMAGE_PREVIEW_EXPIRE_SECONDS,
+          signal,
         );
   } catch {
     return '';
diff --git a/src/components/game-distribution/useGameDistributionMediaReadUrl.ts b/src/components/game-distribution/useGameDistributionMediaReadUrl.ts
index 68b2b1137..373adac5a 100644
--- a/src/components/game-distribution/useGameDistributionMediaReadUrl.ts
+++ b/src/components/game-distribution/useGameDistributionMediaReadUrl.ts
@@ -40,6 +40,7 @@ export function useGameDistributionMediaReadUrl(
       return;
     }
 
+    const controller = new AbortController();
     let cancelled = false;
     setResolvedUrl('');
     setIsResolving(true);
@@ -48,8 +49,13 @@ export function useGameDistributionMediaReadUrl(
           resolvedGameId,
           normalizedKey,
           options.expireSeconds,
+          controller.signal,
         )
-      : getGameDistributionMediaReadUrl(normalizedKey, options.expireSeconds);
+      : getGameDistributionMediaReadUrl(
+          normalizedKey,
+          options.expireSeconds,
+          controller.signal,
+        );
     resolve
       .then((nextUrl) => {
         if (!cancelled) setResolvedUrl(nextUrl);
@@ -63,6 +69,8 @@ export function useGameDistributionMediaReadUrl(
 
     return () => {
       cancelled = true;
+      // 取消已在途的换签请求：objectKey/gameId 快速切换时不再让旧请求白占 API 配额。
+      controller.abort();
     };
   }, [normalizedKey, resolvedGameId, options.expireSeconds, shouldResolve]);
 
diff --git a/src/services/gameDistributionClient.ts b/src/services/gameDistributionClient.ts
index 1d6e3f178..c5fa43080 100644
--- a/src/services/gameDistributionClient.ts
+++ b/src/services/gameDistributionClient.ts
@@ -423,11 +423,12 @@ function readGameDistributionMediaSignedUrl(
 export async function getGameDistributionMediaReadUrl(
   objectKey: string,
   expireSeconds?: number,
+  signal?: AbortSignal,
 ) {
   const params = buildGameDistributionMediaReadParams(objectKey, expireSeconds);
   const payload = await requestJson<GameDistributionMediaReadUrlResponse>(
     `/media/read-url?${params.toString()}`,
-    { method: 'GET', cache: 'no-store' },
+    { method: 'GET', cache: 'no-store', signal },
     '读取游戏媒体地址失败',
     PUBLIC_GAME_REQUEST_OPTIONS,
   );
@@ -444,13 +445,14 @@ export async function getOwnerGameDistributionMediaReadUrl(
   gameId: string,
   objectKey: string,
   expireSeconds?: number,
+  signal?: AbortSignal,
 ) {
   const normalizedGameId = gameId.trim();
   if (!normalizedGameId) throw new Error('缺少作品标识');
   const params = buildGameDistributionMediaReadParams(objectKey, expireSeconds);
   const payload = await requestJson<GameDistributionMediaReadUrlResponse>(
     `/my-games/${encodeURIComponent(normalizedGameId)}/media/read-url?${params.toString()}`,
-    { method: 'GET', cache: 'no-store' },
+    { method: 'GET', cache: 'no-store', signal },
     '读取作品媒体地址失败',
   );
   return readGameDistributionMediaSignedUrl(payload);