diff --git a/cloud/src/meta-service/meta_service_job.cpp b/cloud/src/meta-service/meta_service_job.cpp
index 0c77d5d33b8694..dea58d7fa151f5 100644
--- a/cloud/src/meta-service/meta_service_job.cpp
+++ b/cloud/src/meta-service/meta_service_job.cpp
@@ -1270,6 +1270,22 @@ void process_schema_change_job(MetaServiceCode& code, std::string& msg, std::str
     new_tablet_meta.SerializeToString(&new_tablet_val);
     txn->put(new_tablet_key, new_tablet_val);
 
+    // process mow table, check lock
+    if (new_tablet_meta.enable_unique_key_merge_on_write()) {
+        bool success = check_and_remove_delete_bitmap_update_lock(
+                code, msg, ss, txn, instance_id, new_table_id, new_tablet_id,
+                SCHEMA_CHANGE_DELETE_BITMAP_LOCK_ID, schema_change.delete_bitmap_lock_initiator(),
+                use_version);
+        if (!success) {
+            return;
+        }
+
+        std::string pending_key = meta_pending_delete_bitmap_key({instance_id, new_tablet_id});
+        txn->remove(pending_key);
+        LOG(INFO) << "xxx sc remove delete bitmap pending key, pending_key=" << hex(pending_key)
+                  << " tablet_id=" << new_tablet_id << ", job_id=" << schema_change.id();
+    }
+
     //==========================================================================
     //                move rowsets [2-alter_version] to recycle
     //==========================================================================
@@ -1399,22 +1415,6 @@ void process_schema_change_job(MetaServiceCode& code, std::string& msg, std::str
         return;
     }
 
-    // process mow table, check lock
-    if (new_tablet_meta.enable_unique_key_merge_on_write()) {
-        bool success = check_and_remove_delete_bitmap_update_lock(
-                code, msg, ss, txn, instance_id, new_table_id, new_tablet_id,
-                SCHEMA_CHANGE_DELETE_BITMAP_LOCK_ID, schema_change.delete_bitmap_lock_initiator(),
-                use_version);
-        if (!success) {
-            return;
-        }
-
-        std::string pending_key = meta_pending_delete_bitmap_key({instance_id, new_tablet_id});
-        txn->remove(pending_key);
-        LOG(INFO) << "xxx sc remove delete bitmap pending key, pending_key=" << hex(pending_key)
-                  << " tablet_id=" << new_tablet_id << "job_id=" << schema_change.id();
-    }
-
     for (size_t i = 0; i < schema_change.txn_ids().size(); ++i) {
         auto tmp_rowset_key =
                 meta_rowset_tmp_key({instance_id, schema_change.txn_ids().at(i), new_tablet_id});
diff --git a/cloud/test/meta_service_job_test.cpp b/cloud/test/meta_service_job_test.cpp
index f0e5cb8fe3dd15..a81e9c843d62f2 100644
--- a/cloud/test/meta_service_job_test.cpp
+++ b/cloud/test/meta_service_job_test.cpp
@@ -3458,6 +3458,29 @@ TEST(MetaServiceJobTest, SchemaChangeJobWithMoWTest) {
         ASSERT_EQ(res_code, MetaServiceCode::OK);
         res.Clear();
     }
+
+    // alter version < 2
+    {
+        int64_t new_tablet_id = 16;
+        ASSERT_NO_FATAL_FAILURE(create_tablet(meta_service.get(), table_id, index_id, partition_id,
+                                              new_tablet_id, true, true));
+        StartTabletJobResponse sc_res;
+        ASSERT_NO_FATAL_FAILURE(start_schema_change_job(meta_service.get(), table_id, index_id,
+                                                        partition_id, tablet_id, new_tablet_id,
+                                                        "job2", "be1", sc_res));
+        std::vector<doris::RowsetMetaCloudPB> output_rowsets;
+        auto res_code = get_delete_bitmap_lock(meta_service.get(), table_id, -2, 12345);
+        ASSERT_EQ(res_code, MetaServiceCode::OK);
+        FinishTabletJobResponse res;
+        finish_schema_change_job(meta_service.get(), tablet_id, new_tablet_id, "job2", "be1",
+                                 output_rowsets, res);
+        ASSERT_EQ(res.status().code(), MetaServiceCode::OK);
+        res_code = get_delete_bitmap_lock(meta_service.get(), table_id, 100, -1);
+        ASSERT_EQ(res_code, MetaServiceCode::OK);
+        res_code = remove_delete_bitmap_lock(meta_service.get(), table_id, 100, -1);
+        ASSERT_EQ(res_code, MetaServiceCode::OK);
+        res.Clear();
+    }
 }
 
 TEST(MetaServiceJobTest, ConcurrentCompactionTest) {