diff --git a/document/content/docs/upgrading/4-14/4145.mdx b/document/content/docs/upgrading/4-14/4145.mdx
index 89b74d787..066ebe6d9 100644
--- a/document/content/docs/upgrading/4-14/4145.mdx
+++ b/document/content/docs/upgrading/4-14/4145.mdx
@@ -19,6 +19,7 @@ description: 'FastGPT V4.14.5 更新说明'
 2. 获取对话日志列表时，如果用户头像为空，会抛错。
 3. chatAgent 未开启问题优化时，前端 UI 显示开启。
 4. 加载默认模型时，maxTokens 字段未赋值，导致模型最大响应值配置为空。
+5. S3 文件清理队列因网络稳定问题出现阻塞，导致删除任务不再执行。
 
 
 ## 插件
diff --git a/document/data/doc-last-modified.json b/document/data/doc-last-modified.json
index c58df14f3..330ea4e5b 100644
--- a/document/data/doc-last-modified.json
+++ b/document/data/doc-last-modified.json
@@ -120,7 +120,7 @@
   "document/content/docs/upgrading/4-14/4142.mdx": "2025-11-18T19:27:14+08:00",
   "document/content/docs/upgrading/4-14/4143.mdx": "2025-11-26T20:52:05+08:00",
   "document/content/docs/upgrading/4-14/4144.mdx": "2025-12-16T14:56:04+08:00",
-  "document/content/docs/upgrading/4-14/4145.mdx": "2025-12-20T13:11:02+08:00",
+  "document/content/docs/upgrading/4-14/4145.mdx": "2025-12-21T19:15:10+08:00",
   "document/content/docs/upgrading/4-8/40.mdx": "2025-08-02T19:38:37+08:00",
   "document/content/docs/upgrading/4-8/41.mdx": "2025-08-02T19:38:37+08:00",
   "document/content/docs/upgrading/4-8/42.mdx": "2025-08-02T19:38:37+08:00",
diff --git a/packages/service/common/s3/mq.ts b/packages/service/common/s3/mq.ts
index f04d5f157..7025bcff0 100644
--- a/packages/service/common/s3/mq.ts
+++ b/packages/service/common/s3/mq.ts
@@ -43,33 +43,65 @@ export const addS3DelJob = async (data: S3MQJobData): Promise<void> => {
 export const prefixDel = async (bucket: S3BaseBucket, prefix: string) => {
   addLog.debug(`[S3 delete] delete prefix: ${prefix}`);
   let tasks: Promise<any>[] = [];
-  return new Promise<void>(async (resolve, reject) => {
+  return new Promise<void>((resolve, reject) => {
+    let timer: NodeJS.Timeout;
     const stream = bucket.listObjectsV2(prefix, true);
+
+    let settled = false;
+    const finish = (error?: any) => {
+      if (settled) return;
+      settled = true;
+
+      if (timer) {
+        clearTimeout(timer);
+      }
+
+      stream?.removeAllListeners?.();
+      stream?.destroy?.();
+
+      if (error) {
+        addLog.error(`[S3 delete] delete prefix failed`, error);
+        reject(error);
+      } else {
+        resolve();
+      }
+    };
+
+    // stream 可能会中断，没有触发 end 和 error，导致 promise 不返回，需要增加定时器兜底。
+    timer = setTimeout(() => {
+      addLog.error(`[S3 delete] delete prefix timeout: ${prefix}`);
+      finish('Timeout');
+    }, 60000);
+
     stream.on('data', (file) => {
       if (!file.name) return;
       tasks.push(bucket.removeObject(file.name));
     });
-
     stream.on('end', async () => {
       if (tasks.length === 0) {
-        return resolve();
+        return finish();
       }
 
+      if (timer) {
+        clearTimeout(timer);
+      }
       const results = await Promise.allSettled(tasks);
       const failed = results.some((r) => r.status === 'rejected');
       if (failed) {
-        addLog.error(`[S3 delete] delete prefix failed: ${prefix}`);
-        reject('Some deletes failed');
+        return finish('Some deletes failed');
       }
-      resolve();
+      finish();
     });
-
     stream.on('error', (err) => {
       if (isFileNotFoundError(err)) {
-        return resolve();
+        return finish();
       }
       addLog.error(`[S3 delete] delete prefix: ${prefix} error`, err);
-      reject(err);
+      return finish(err);
+    });
+    stream.on('pause', () => {
+      addLog.warn(`[S3 delete] delete prefix: ${prefix} paused`);
+      stream.resume();
     });
   });
 };
diff --git a/packages/service/common/vectorDB/pg/controller.ts b/packages/service/common/vectorDB/pg/controller.ts
index 30f6e0541..9b2edf3b0 100644
--- a/packages/service/common/vectorDB/pg/controller.ts
+++ b/packages/service/common/vectorDB/pg/controller.ts
@@ -176,7 +176,8 @@ class PgClass {
       const time = Date.now() - start;
 
       if (time > 300) {
-        addLog.warn(`pg query time: ${time}ms, sql: ${sql}`);
+        const safeSql = sql.replace(/'\[[^\]]*?\]'/g, "'[x]'");
+        addLog.warn(`pg query time: ${time}ms, sql: ${safeSql}`);
       }
 
       return res;
diff --git a/packages/service/core/dataset/delete/processor.ts b/packages/service/core/dataset/delete/processor.ts
index 154fc861f..2fed96ef7 100644
--- a/packages/service/core/dataset/delete/processor.ts
+++ b/packages/service/core/dataset/delete/processor.ts
@@ -52,6 +52,7 @@ export const deleteTeamAllDatasets = async (teamId: string) => {
   );
 };
 
+// 批量删除函数
 const deleteDatasets = async ({
   teamId,
   datasets