diff --git a/api/core/rag/retrieval/dataset_retrieval.py b/api/core/rag/retrieval/dataset_retrieval.py
index 65c914c738..4de0664f9b 100644
--- a/api/core/rag/retrieval/dataset_retrieval.py
+++ b/api/core/rag/retrieval/dataset_retrieval.py
@@ -236,20 +236,24 @@ class DatasetRetrieval:
             if records:
                 for record in records:
                     segment = record.segment
+                    # Build content: if summary exists, add it before the segment content
                     if segment.answer:
-                        document_context_list.append(
-                            DocumentContext(
-                                content=f"question:{segment.get_sign_content()} answer:{segment.answer}",
-                                score=record.score,
-                            )
-                        )
+                        segment_content = f"question:{segment.get_sign_content()} answer:{segment.answer}"
                     else:
-                        document_context_list.append(
-                            DocumentContext(
-                                content=segment.get_sign_content(),
-                                score=record.score,
-                            )
+                        segment_content = segment.get_sign_content()
+                    
+                    # If summary exists, prepend it to the content
+                    if record.summary:
+                        final_content = f"{record.summary}\n{segment_content}"
+                    else:
+                        final_content = segment_content
+                    
+                    document_context_list.append(
+                        DocumentContext(
+                            content=final_content,
+                            score=record.score,
                         )
+                    )
                     if vision_enabled:
                         attachments_with_bindings = db.session.execute(
                             select(SegmentAttachmentBinding, UploadFile)