diff --git a/src/gausskernel/optimizer/plan/createplan.cpp b/src/gausskernel/optimizer/plan/createplan.cpp
index 7dcedd1bf719bf7b7601bae948898634cb0ba254..8dce2a561184119fbb2e58ce900d1e1650ed5d8d 100755
--- a/src/gausskernel/optimizer/plan/createplan.cpp
+++ b/src/gausskernel/optimizer/plan/createplan.cpp
@@ -9645,9 +9645,10 @@ ModifyTable* make_modifytable(CmdType operation, bool canSetTag, List* resultRel
         isUstore = result_rte->is_ustore;
     }
 
+    int nest_level = GetCurrentTransactionNestLevel();  // not support the smp in nest transaction.
     bool supportIUDParallel =
         (operation == CMD_DELETE || operation == CMD_UPDATE || (operation == CMD_INSERT && !upsertClause)) &&
-        returningLists == NIL && !isUstore && list_length(subplans) == 1 &&
+        returningLists == NIL && !isUstore && list_length(subplans) == 1 && nest_level <= 1 &&
         (linitial_node(RangeTblEntry, root->parse->rtable)->orientation == REL_ROW_ORIENTED);
 
     Assert(list_length(resultRelations) == list_length(subplans));
diff --git a/src/test/regress/expected/smp.out b/src/test/regress/expected/smp.out
index 2026bf5db6df6a79dc842a81f7cfda34a7dc1eaf..0bea03e687f86ca33d55e583cc4599387db47b4b 100644
--- a/src/test/regress/expected/smp.out
+++ b/src/test/regress/expected/smp.out
@@ -1564,6 +1564,18 @@ select /*+ set(query_dop 1002) indexonlyscan(ios_t1) */ count(*) from ios_t1;
 (1 row)
 
 drop table ios_t1;
+create table pktable2(f1 int primary key);
+NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "pktable2_pkey" for table "pktable2"
+create table fktable2(f1 int references pktable2 deferrable initially deferred);
+insert into pktable2 values(1);
+begin;
+insert into fktable2 values(1);
+savepoint x;
+delete from fktable2;
+rollback to x;
+commit;
+drop table fktable2;
+drop table pktable2;
 --clean
 set search_path=public;
 drop schema test_smp cascade;
diff --git a/src/test/regress/sql/smp.sql b/src/test/regress/sql/smp.sql
index fdb88ae94c6e689c0151c841c228f3bd796adfd4..3f8979132e614e0ab6a8fb3e7859fd928eb25a7b 100644
--- a/src/test/regress/sql/smp.sql
+++ b/src/test/regress/sql/smp.sql
@@ -304,6 +304,22 @@ explain(costs off) select /*+ set(query_dop 1002) indexonlyscan(ios_t1) */ count
 select /*+ set(query_dop 1002) indexonlyscan(ios_t1) */ count(*) from ios_t1;
 
 drop table ios_t1;
+
+
+create table pktable2(f1 int primary key);
+create table fktable2(f1 int references pktable2 deferrable initially deferred);
+insert into pktable2 values(1);
+
+begin;
+insert into fktable2 values(1);
+savepoint x;
+delete from fktable2;
+rollback to x;
+commit;
+
+drop table fktable2;
+drop table pktable2;
+
 --clean
 set search_path=public;
 drop schema test_smp cascade;