diff --git a/apps/api/src/services/decision_manager.py b/apps/api/src/services/decision_manager.py
index 4ae43b85..fe7ac1af 100644
--- a/apps/api/src/services/decision_manager.py
+++ b/apps/api/src/services/decision_manager.py
@@ -182,10 +182,16 @@ async def _push_decision_to_telegram(
             try:
                 from src.services.alert_rule_engine import match_rule as _match_rule
                 _labels = incident.signals[0].labels if incident.signals else {}
+                # 2026-04-12 ogt: Incident 沒有 title 欄位，用 signal annotation summary
+                _sig_msg = (
+                    incident.signals[0].annotations.get("summary", "") or
+                    incident.signals[0].annotations.get("description", "") or
+                    incident.signals[0].alert_name
+                ) if incident.signals else ""
                 _rule_resp = _match_rule({
                     "labels": _labels,
                     "alert_type": _labels.get("alertname", target),
-                    "message": incident.title or "",
+                    "message": _sig_msg,
                     "target_resource": target,
                     "namespace": incident.signals[0].labels.get("namespace", "awoooi-prod") if incident.signals else "awoooi-prod",
                     "severity": risk_level,
@@ -244,9 +250,14 @@ async def _push_decision_to_telegram(
 
         if _notif_type == NotificationType.TYPE_1:
             # 純資訊通知 — 無按鈕
+            # 2026-04-12 ogt: Incident 沒有 title 欄位，用 alertname
+            _info_title = (
+                incident.signals[0].labels.get("alertname", "") or
+                incident.signals[0].alert_name
+            ) if incident.signals else "告警通知"
             tg_result = await gateway.send_info_notification(
                 incident_id=incident.incident_id,
-                title=incident.title or "告警通知",
+                title=_info_title or "告警通知",
                 message=reasoning[:200] if reasoning else description[:200],
                 alertname=incident.signals[0].labels.get("alertname", "") if incident.signals else "",
                 severity="info",