diff --git a/App/Model/RatingFlowModel.py b/App/Model/RatingFlowModel.py
index 61a6bd9..d30fdd0 100644
--- a/App/Model/RatingFlowModel.py
+++ b/App/Model/RatingFlowModel.py
@@ -27,9 +27,9 @@ class RatingFlowParticipant(Base):
     id = Column(String(16), primary_key=True)
     participant = Column(String(32), index=True, comment="参与人")
     user_id = Column(String(16), comment="用户ID")
-    rating_process_id = Column(String(16), ForeignKey("rating_flow.id"), comment="评级流程ID")
+    rating_process_id = Column(String(16), ForeignKey("rating_flow.id", ondelete='CASCADE'), comment="评级流程ID")
 
-    rating_flow = relationship("RatingFlow", back_populates="rating_flow_participant")
+    rating_flow = relationship("RatingFlow", back_populates="rating_flow_participant", passive_deletes=True)
 
 
 class RatingFlowNode(Base):