diff --git a/apps/api/src/repositories/playbook_repository.py b/apps/api/src/repositories/playbook_repository.py
index 468dd2d9..2532ca98 100644
--- a/apps/api/src/repositories/playbook_repository.py
+++ b/apps/api/src/repositories/playbook_repository.py
@@ -272,7 +272,11 @@ class PlaybookRepository:
                     playbook.symptom_pattern,
                 )
 
-                if similarity >= min_similarity:
+                # alert_names 完全匹配時，保證通過（不因其他維度拉低分數）
+                alert_exact_match = bool(
+                    set(symptoms.alert_names) & set(playbook.symptom_pattern.alert_names)
+                )
+                if alert_exact_match or similarity >= min_similarity:
                     results.append((playbook, similarity))
 
             # 3. 排序並返回 Top K