diff --git a/deploy/profile-scripts/daily_kline_collector.py b/deploy/profile-scripts/daily_kline_collector.py
index 40e8e6d6..8d4a9c92 100644
--- a/deploy/profile-scripts/daily_kline_collector.py
+++ b/deploy/profile-scripts/daily_kline_collector.py
@@ -138,6 +138,27 @@ def main():
                 written += 1
             ok += 1
         except Exception as e:
+            # 2026-08-18 database is locked 指数退避重试（工单t_17ba6f5d：sz_b整点调度撞锁致2只失败）
+            if "database is locked" in str(e).lower() or "locked" in str(e).lower():
+                import random as _rd
+                _retry = 0
+                _ok = False
+                while _retry < 3 and not _ok:
+                    try:
+                        time.sleep(0.5 * (2 ** _retry) + _rd.uniform(0, 0.3))
+                        for b in bars[-WRITE_RECENT:]:
+                            cur.execute(
+                                "INSERT OR REPLACE INTO stock_daily (code, date, open, close, high, low, volume) "
+                                "VALUES (?,?,?,?,?,?,?)",
+                                (code, b["date"], b["open"], b["close"], b["high"], b["low"], b["volume"]),
+                            )
+                        conn.commit()
+                        _ok = True
+                    except Exception:
+                        _retry += 1
+                if _ok:
+                    ok += 1
+                    continue
             fail += 1
             if fail <= 5:
                 print(f"  FAIL {code}: {e}", flush=True)