diff --git a/platform/backend/app/api/topics.py b/platform/backend/app/api/topics.py
index 46060b3..a32a96b 100644
--- a/platform/backend/app/api/topics.py
+++ b/platform/backend/app/api/topics.py
@@ -31,6 +31,7 @@ def list_topics(
     status: Optional[str] = None,
     today: Optional[bool] = None,
     tag: Optional[str] = None,
+    series: Optional[str] = None,
     search: Optional[str] = None,
     sort_by: str = Query("priority_score", enum=["priority_score", "created_at", "title", "updated_at"]),
     order: str = Query("desc", enum=["asc", "desc"]),
@@ -54,6 +55,8 @@ def list_topics(
         query = query.filter(func.date(Topic.created_at) == date.today())
     if tag:
         query = query.filter(Topic.tags.contains([tag]))
+    if series:
+        query = query.filter(Topic.series == series)
     if search:
         query = query.filter(Topic.title.contains(search))
 
diff --git a/platform/backend/app/database.py b/platform/backend/app/database.py
index fa2c54b..675c897 100644
--- a/platform/backend/app/database.py
+++ b/platform/backend/app/database.py
@@ -131,6 +131,7 @@ def init_db():
                 ("search_rankings", "org_id", "VARCHAR DEFAULT 'default'"),
                 ("geo_readiness_scores", "org_id", "VARCHAR DEFAULT 'default'"),
                 ("articles", "org_id", "VARCHAR DEFAULT 'default'"),
+                ("topics", "series", "VARCHAR"),
             ]:
                 try:
                     conn.execute(text(f"ALTER TABLE {table} ADD COLUMN IF NOT EXISTS {col} {typ}"))
diff --git a/platform/backend/app/models.py b/platform/backend/app/models.py
index d353372..abbd61f 100644
--- a/platform/backend/app/models.py
+++ b/platform/backend/app/models.py
@@ -265,6 +265,7 @@ class Topic(Base):
     platform_urls = Column(JSON, default=dict)
     lock_by = Column(String, nullable=True)
     lock_at = Column(DateTime, nullable=True)
+    series = Column(String, nullable=True, index=True, comment="所属栏目，如：AI工具实测周报、科技人文思辨")
 
     field = relationship("TopicField", backref="topics")
 
diff --git a/platform/backend/app/schemas.py b/platform/backend/app/schemas.py
index 5c7a403..cb44cd8 100644
--- a/platform/backend/app/schemas.py
+++ b/platform/backend/app/schemas.py
@@ -76,6 +76,7 @@ class TopicBase(BaseModel):
     scoring_data: Dict[str, Any] = {}
     lock_by: Optional[str] = None
     lock_at: Optional[datetime] = None
+    series: Optional[str] = None
 
 
 class TopicCreate(BaseModel):
@@ -90,6 +91,7 @@ class TopicCreate(BaseModel):
     tags: List[str] = []
     custom_data: Dict[str, Any] = {}
     scoring_data: Dict[str, Any] = {}
+    series: Optional[str] = None
 
 
 class TopicAnalyzeRequest(BaseModel):
@@ -123,6 +125,7 @@ class TopicUpdate(BaseModel):
     scoring_data: Optional[Dict[str, Any]] = None
     priority_score: Optional[int] = None
     total_score: Optional[float] = None
+    series: Optional[str] = None
 
 
 class TopicResponse(TopicBase):