diff --git a/deploy/profile-scripts/mofin_db.py b/deploy/profile-scripts/mofin_db.py
index d1f6a186..97621dd6 100644
--- a/deploy/profile-scripts/mofin_db.py
+++ b/deploy/profile-scripts/mofin_db.py
@@ -1380,7 +1380,11 @@ def sync_recommend_tag(conn, code: str, timing_signal: str):
     动作级信号 → current_recommend；信号降级 → 清除 current_recommend；
     active_manual（人工标记）永不动。与 XMPP 动作级告警同源（红线#12）。"""
     try:
-        recompute_rr(conn, code)  # 先入先算：保证 tag/入队/盯盘排序拿到新鲜 RR
+        # 2026-08-18 修复：RR 由 scanner 定（老莫原则），已有值不重算覆盖。
+        # 原逻辑每次信号同步都 recompute_rr → 重评后参数漂移 → scanner 定的 RR(2.29) 被悄悄改成 1.51。
+        _rr_have = conn.execute("SELECT rr_ratio FROM holding_strategies WHERE code=? AND status='active'", (code,)).fetchone()
+        if not (_rr_have and (_rr_have[0] or 0) > 0):
+            recompute_rr(conn, code)  # 仅 RR 缺失(0)时兜底，保证 tag/入队/盯盘排序有值
         _row = conn.execute(
             "SELECT tag, timing_signal FROM holding_strategies WHERE code=? AND status='active'", (code,)).fetchone()
         _old_tag = (_row[0] or '') if _row else ''