diff --git a/api_server.py b/api_server.py
index 485abc7..ee1b639 100644
--- a/api_server.py
+++ b/api_server.py
@@ -25,7 +25,8 @@ from resident_worker import ResidentPool
 # ==================== 日志配置 ====================
 logging.basicConfig(
     level=logging.INFO,
-    format='%(asctime)s | %(levelname)s | %(message)s'
+    format='%(asctime)s.%(msecs)03d | %(levelname)s | %(message)s',
+    datefmt='%Y-%m-%d %H:%M:%S'
 )
 logger = logging.getLogger(__name__)
 
@@ -96,7 +97,10 @@ def health_check():
 
 @app.post("/api/v1/analysis/submit", response_model=TaskResponse)
 def submit_task(request: TaskRequest):
+    received_at = datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3]
     task_id = request.task_id if request.task_id else Path(request.folder_name).name
+    logger.info("API 接收到任务时间：%s | task_id=%s | folder_name=%s",
+                received_at, task_id, request.folder_name)
     if not task_id or len(task_id) < 3:
         raise HTTPException(status_code=400, detail="任务 ID 格式错误，至少 3 个字符")
     # Resolve the date at submission, not after a queued task starts tomorrow.
@@ -110,6 +114,9 @@ def submit_task(request: TaskRequest):
     except QueueFull as exc:
         raise HTTPException(status_code=429, detail=str(exc),
                             headers={"Retry-After": "5"}) from exc
+    logger.info("API 任务入队时间：%s | task_id=%s | status=%s | created=%s",
+                datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3],
+                task_id, task["status"], created)
     return TaskResponse(code=200,
                         message="任务已加入队列" if created else "任务已存在，正在等待或运行中",
                         task_id=task_id, status=task["status"])
diff --git a/wanzheng.py b/wanzheng.py
index 4eb2d19..bd7cfa4 100644
--- a/wanzheng.py
+++ b/wanzheng.py
@@ -14,6 +14,7 @@ import os
 import argparse
 import threading
 import time
+from datetime import datetime
 
 from concurrent.futures import ThreadPoolExecutor, as_completed
 from tqdm import tqdm
@@ -29,12 +30,16 @@ def setup_logging(verbose: bool = False):
     logging.basicConfig(
         level=level,
         format='%(asctime)s | %(levelname)s | %(message)s',
-        datefmt='%H:%M:%S'
+        datefmt='%Y-%m-%d %H:%M:%S'
     )
     return logging.getLogger(__name__)
 
 logger = setup_logging()
 
+
+def now_text() -> str:
+    return datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3]
+
 # ==================== 支持中文路径的读写函数 ====================
 def cv2_imread_chinese(file_path: str) -> Optional[np.ndarray]:
     if not os.path.exists(file_path):
@@ -551,20 +556,27 @@ def save_text_report(results: List[Dict], texts_dir: Path):
 # ==================== 回调后端接口 ====================
 def callback_api(task_id: str, status: int, api_url: str = API_HOST+API_CALLBACK):
     """完成后回调后端接口"""
+    started = time.perf_counter()
+    callback_at = now_text()
+    logger.info("任务 %s 开始回调 Go：%s | url=%s | status=%s",
+                task_id, callback_at, api_url, status)
     try:
         payload = {
             "task_id": task_id,
             "status": status  # 1=成功，0=失败
         }
         response = requests.post(api_url, json=payload, timeout=10)
+        elapsed = time.perf_counter() - started
         if response.status_code == 200:
-            logger.info(f"回调成功：{task_id}")
+            logger.info("任务 %s 回调 Go 成功：%s | 回调耗时：%.3f 秒",
+                        task_id, now_text(), elapsed)
             return True
-        else:
-            logger.warning(f"回调失败：{response.status_code, api_url}")
-            return False
+        logger.warning("任务 %s 回调 Go 失败：%s | status=%s | 回调耗时：%.3f 秒 | url=%s",
+                       task_id, now_text(), response.status_code, elapsed, api_url)
+        return False
     except Exception as e:
-        logger.error(f"回调异常：{e}")
+        logger.error("任务 %s 回调 Go 异常：%s | 时间：%s | 回调耗时：%.3f 秒",
+                     task_id, e, now_text(), time.perf_counter() - started)
         return False
 
 class SafeYOLO:
@@ -583,10 +595,11 @@ class SafeYOLO:
         with self._lock:
             return self._model(*args, **kwargs)
 
-
 def analyze_directory(input_dir, task_id, model, workers=4, api_url=None):
     """Reuse a warmed model. Return structured status to the resident parent."""
+    received_at = now_text()
     started = time.perf_counter()
+    logger.info("任务 %s 接收到任务时间：%s | input_dir=%s", task_id, received_at, input_dir)
     input_dir = Path(input_dir)
     results = []
     error = None
@@ -616,15 +629,21 @@ def analyze_directory(input_dir, task_id, model, workers=4, api_url=None):
         logger.exception("分析任务失败：%s", task_id)
         error = str(exc) or type(exc).__name__
     analysis_seconds = time.perf_counter() - started
-    logger.info("任务 %s 分析结束：%.3f 秒，成功 %d，未完整成功 %d", task_id, analysis_seconds,
+    finished_at = now_text()
+    logger.info("任务 %s 处理完成时间：%s | 处理用时：%.3f 秒 | 成功 %d，未完整成功 %d",
+                task_id, finished_at, analysis_seconds,
                 sum(r['status'] == 'success' for r in results),
                 sum(r['status'] != 'success' for r in results))
     callback_ok = None
     if api_url:
         callback_ok = callback_api(task_id, 0 if error else 1, api_url)
+    total_seconds = time.perf_counter() - started
+    logger.info("任务 %s 全流程结束：%s | 接收：%s | 处理用时：%.3f 秒 | 含回调总用时：%.3f 秒",
+                task_id, now_text(), received_at, analysis_seconds, total_seconds)
     return {'task_id': task_id, 'error': error, 'images': results,
             'analysis_seconds': analysis_seconds,
-            'total_seconds': time.perf_counter() - started, 'callback_ok': callback_ok}
+            'total_seconds': total_seconds, 'callback_ok': callback_ok,
+            'received_at': received_at, 'finished_at': finished_at}
 
 
 def main():