diff --git a/backend/app/services/dashboard_service.py b/backend/app/services/dashboard_service.py
index 62c57fa..2b6a8ea 100644
--- a/backend/app/services/dashboard_service.py
+++ b/backend/app/services/dashboard_service.py
@@ -483,29 +483,29 @@ async def get_user_operations(
     since: datetime | None = None,
     until: datetime | None = None,
 ) -> list[UserOperation]:
-    """上帝视角 — 统计**全部人员**的操作次数（按时段过滤 task_logs）。
+    """上帝视角 — 统计**全部人员**的操作次数（按时段过滤）。
 
     返回所有 IRIS 部门人员（该时段无操作的计 0），并追加有操作记录但不在
     人员清单中的账号（如历史/已离职）。
 
-    操作口径：
-      - 接收: action_type='receive'
-      - 转交: action_type='complete'（完工并移交下一道工序）
-      - 上传备注: action_type='record'（工人手动追加的进度记录）
+    操作口径（均不修改数据库）：
+      - 接收: task_logs.action_type='receive'（按操作人）
+      - 转交: task_logs.action_type='complete'（按操作人）
+      - 上传备注: task_records 按**任务负责人**归因（排除系统自动生成的
+        以 '[' 开头的备注，如 "[接收] 操作员已确认接收"），历史数据可回溯
     """
     from app.models.task_log import TaskLog
+    from app.models.task import Task, TaskRecord
     from app.core.mom_database import MomSessionLocal
-    from sqlalchemy import text
+    from sqlalchemy import text, or_
 
-    # ── 1. 统计 task_logs 操作次数（按 operator_id 聚合）──
+    # ── 1. 接收 / 转交（task_logs 按 operator_id 聚合）──
     rcv = func.count().filter(TaskLog.action_type == "receive")
     cpl = func.count().filter(TaskLog.action_type == "complete")
-    rcd = func.count().filter(TaskLog.action_type == "record")
-
     stmt = (
-        select(TaskLog.operator_id, rcv.label("receive"), cpl.label("complete"), rcd.label("record"))
+        select(TaskLog.operator_id, rcv.label("receive"), cpl.label("complete"))
         .where(
-            TaskLog.action_type.in_(["receive", "complete", "record"]),
+            TaskLog.action_type.in_(["receive", "complete"]),
             TaskLog.operator_id.isnot(None),
         )
         .group_by(TaskLog.operator_id)
@@ -514,11 +514,27 @@ async def get_user_operations(
         stmt = stmt.where(TaskLog.created_at >= since)
     if until:
         stmt = stmt.where(TaskLog.created_at <= until)
+    op_rows = (await db.execute(stmt)).all()
+    op_map = {r[0]: (r[1] or 0, r[2] or 0) for r in op_rows}
 
-    result = await db.execute(stmt)
-    op_map = {r[0]: (r[1] or 0, r[2] or 0, r[3] or 0) for r in result.all()}
+    # ── 2. 上传备注（task_records 按任务 assignee 归因，排除系统自动备注）──
+    rcd_stmt = (
+        select(Task.assignee_id, func.count(TaskRecord.id))
+        .join(Task, TaskRecord.task_id == Task.id)
+        .where(
+            Task.assignee_id.isnot(None),
+            or_(TaskRecord.remark.is_(None), ~TaskRecord.remark.like("[%")),
+        )
+        .group_by(Task.assignee_id)
+    )
+    if since:
+        rcd_stmt = rcd_stmt.where(TaskRecord.created_at >= since)
+    if until:
+        rcd_stmt = rcd_stmt.where(TaskRecord.created_at <= until)
+    rcd_rows = (await db.execute(rcd_stmt)).all()
+    record_map = {r[0]: r[1] or 0 for r in rcd_rows}
 
-    # ── 2. 获取全部 MOM 用户清单（IRIS 部门）──
+    # ── 3. 获取全部 MOM 用户清单（IRIS 部门）──
     users: list[dict] = []
     try:
         dbm = MomSessionLocal()
@@ -540,19 +556,19 @@ async def get_user_operations(
     except Exception:
         users = []
 
-    # ── 3. 合并：所有人员 + 有操作但不在清单的账号 ──
+    # ── 4. 合并：所有人员 + 有操作但不在清单的账号 ──
     merged: dict[str, dict] = {}
     for u in users:
         merged[u["username"]] = {"name": u["full_name"], "rcv": 0, "cpl": 0, "rcd": 0}
-    for uid, (r, c, rd) in op_map.items():
-        if uid in merged:
-            merged[uid]["rcv"] = r
-            merged[uid]["cpl"] = c
-            merged[uid]["rcd"] = rd
-        else:
-            merged[uid] = {"name": uid, "rcv": r, "cpl": c, "rcd": rd}
+    for uid in set(op_map.keys()) | set(record_map.keys()):
+        if uid not in merged:
+            merged[uid] = {"name": uid, "rcv": 0, "cpl": 0, "rcd": 0}
+        r, c = op_map.get(uid, (0, 0))
+        merged[uid]["rcv"] = r
+        merged[uid]["cpl"] = c
+        merged[uid]["rcd"] = record_map.get(uid, 0)
 
-    # ── 4. 组装 + 排序（总次数降序，无操作的排在最后）──
+    # ── 5. 组装 + 排序（总次数降序，无操作的排在最后）──
     items: list[UserOperation] = []
     for uid, v in merged.items():
         items.append(UserOperation(
diff --git a/backend/app/services/task_service.py b/backend/app/services/task_service.py
index 51b53c9..06d662b 100644
--- a/backend/app/services/task_service.py
+++ b/backend/app/services/task_service.py
@@ -1049,16 +1049,6 @@ async def add_task_record(
     db.add(record)
     await db.flush()
 
-    # 🔧 操作日志：记录一次「上传备注」操作（供人员操作统计）
-    if current_user:
-        from app.models.task_log import TaskLog
-        db.add(TaskLog(
-            task_id=task_id,
-            operator_id=current_user.get("username") or current_user.get("sub") or "",
-            action_type="record",
-            remark=f"上传备注: {(data.remark or '')[:100]}",
-        ))
-
     # 🚀 留言通知：给任务当前负责人发送提醒（不给自己发）
     if (
         current_user