diff --git a/common/data_source/rdbms_connector.py b/common/data_source/rdbms_connector.py
index 2902041bd5..05628501c6 100644
--- a/common/data_source/rdbms_connector.py
+++ b/common/data_source/rdbms_connector.py
@@ -204,11 +204,11 @@ class RDBMSConnector(LoadConnector, PollConnector):
                 value = row_dict[col]
                 if isinstance(value, (dict, list)):
                     value = json.dumps(value, ensure_ascii=False)
-                # Use brackets around field name to ensure it's distinguishable
-                # after chunking (TxtParser strips \n delimiters during merge)
-                content_parts.append(f"【{col}】: {value}")
+                # Use brackets around field name and put value on a new line
+                # so that TxtParser preserves field boundaries after chunking.
+                content_parts.append(f"【{col}】:\n{value}")
         
-        content = "\n".join(content_parts)
+        content = "\n\n".join(content_parts)
         
         if self.id_column and self.id_column in row_dict:
             doc_id = f"{self.db_type}:{self.database}:{row_dict[self.id_column]}"
diff --git a/deepdoc/parser/txt_parser.py b/deepdoc/parser/txt_parser.py
index 64e200cbc6..6abf8591da 100644
--- a/deepdoc/parser/txt_parser.py
+++ b/deepdoc/parser/txt_parser.py
@@ -40,7 +40,10 @@ class RAGFlowTxtParser:
                 cks.append(t)
                 tk_nums.append(tnum)
             else:
-                cks[-1] += t
+                if cks[-1]:
+                    cks[-1] += "\n" + t
+                else:
+                    cks[-1] += t
                 tk_nums[-1] += tnum
 
         dels = []