diff --git a/be/test/storage/lake/async_delta_writer_test.cpp b/be/test/storage/lake/async_delta_writer_test.cpp
index cc72bae0b4143..e65b9a03f5030 100644
--- a/be/test/storage/lake/async_delta_writer_test.cpp
+++ b/be/test/storage/lake/async_delta_writer_test.cpp
@@ -515,43 +515,4 @@ TEST_F(LakeAsyncDeltaWriterTest, test_concurrent_write_and_close) {
 
     SyncPoint::GetInstance()->DisableProcessing();
 }
-
-TEST_F(LakeAsyncDeltaWriterTest, test_flush) {
-    // Prepare data for writing
-    static const int kChunkSize = 128;
-    auto chunk0 = generate_data(kChunkSize);
-    auto indexes = std::vector<uint32_t>(kChunkSize);
-    for (int i = 0; i < kChunkSize; i++) {
-        indexes[i] = i;
-    }
-
-    auto txn_id = next_id();
-    auto tablet_id = _tablet_metadata->id();
-    ASSIGN_OR_ABORT(auto delta_writer, AsyncDeltaWriterBuilder()
-                                               .set_tablet_manager(_tablet_mgr.get())
-                                               .set_tablet_id(tablet_id)
-                                               .set_txn_id(txn_id)
-                                               .set_partition_id(_partition_id)
-                                               .set_mem_tracker(_mem_tracker.get())
-                                               .set_schema_id(_tablet_schema->id())
-                                               .build());
-    ASSERT_OK(delta_writer->open());
-    delta_writer->write(&chunk0, indexes.data(), indexes.size(), [&](const Status& st) { ASSERT_OK(st); });
-    delta_writer->flush([&](const Status& st) {
-        ASSERT_OK(st);
-    });
-    std::this_thread::sleep_for(std::chrono::milliseconds(1000));
-    while (delta_writer->queueing_memtable_num() > 0) {
-        std::this_thread::sleep_for(std::chrono::milliseconds(100));
-    }
-    EXPECT_EQ(0, delta_writer->queueing_memtable_num());
-
-    // test flush after close
-    SyncPoint::GetInstance()->LoadDependency({{"AsyncDeltaWriterImpl::close:2", "AsyncDeltaWriterImpl::execute:1"}});
-    SyncPoint::GetInstance()->EnableProcessing();
-    DeferOp defer([&]() { SyncPoint::GetInstance()->DisableProcessing(); });
-    delta_writer->flush([&](const Status& st) { ASSERT_ERROR(st); });
-    delta_writer->close();
-}
-
 } // namespace starrocks::lake