diff --git a/be/src/vec/sink/writer/vtablet_writer.cpp b/be/src/vec/sink/writer/vtablet_writer.cpp
index 51e80a615e..1e6b8f7b86 100644
--- a/be/src/vec/sink/writer/vtablet_writer.cpp
+++ b/be/src/vec/sink/writer/vtablet_writer.cpp
@@ -1027,7 +1027,13 @@ static void* periodic_send_batch(void* writer) {
 }
 
 Status VTabletWriter::open(doris::RuntimeState* state, doris::RuntimeProfile* profile) {
-    RETURN_IF_ERROR(_init(state, profile));
+    // if we set enable_decimal_conversion=false && disable_decimalv2=false in config
+    // and we create nested type with decimal like array<text,decimal(28,12)>
+    // nereids planner will throw exception with precision should in (0, 27], but real precision is 28
+    // but in 2.1 we can fall back to old planner which make this behavior possible
+    // so in _init() we will meet slot has decimalv2 type with has precision 28 and exception will
+    // throw from func check_type_precision() , so here we catch exception to avoid be core.
+    RETURN_IF_ERROR_OR_CATCH_EXCEPTION(_init(state, profile));
     signal::set_signal_task_id(_load_id);
     SCOPED_TIMER(profile->total_time_counter());
     SCOPED_TIMER(_open_timer);
diff --git a/be/src/vec/sink/writer/vtablet_writer_v2.cpp b/be/src/vec/sink/writer/vtablet_writer_v2.cpp
index 6013e31609..3bdc486f05 100644
--- a/be/src/vec/sink/writer/vtablet_writer_v2.cpp
+++ b/be/src/vec/sink/writer/vtablet_writer_v2.cpp
@@ -247,7 +247,13 @@ Status VTabletWriterV2::_init(RuntimeState* state, RuntimeProfile* profile) {
 }
 
 Status VTabletWriterV2::open(RuntimeState* state, RuntimeProfile* profile) {
-    RETURN_IF_ERROR(_init(state, profile));
+    // if we set enable_decimal_conversion=false && disable_decimalv2=false in config
+    // and we create nested type with decimal like array<text,decimal(28,12)>
+    // nereids planner will throw exception with precision should in (0, 27], but real precision is 28
+    // but in 2.1 we can fall back to old planner which make this behavior possible
+    // so in _init() we will meet slot has decimalv2 type with has precision 28 and exception will
+    // throw from func check_type_precision() , so here we catch exception to avoid be core.
+    RETURN_IF_ERROR_OR_CATCH_EXCEPTION(_init(state, profile));
     LOG(INFO) << "opening olap table sink, load_id=" << print_id(_load_id) << ", txn_id=" << _txn_id
               << ", sink_id=" << _sender_id;
     _timeout_watch.start();