diff --git a/src/share/io/ob_io_define.cpp b/src/share/io/ob_io_define.cpp
index 2a2419008..0b41b0365 100644
--- a/src/share/io/ob_io_define.cpp
+++ b/src/share/io/ob_io_define.cpp
@@ -121,6 +121,9 @@ const char *oceanbase::common::get_io_sys_group_name(ObIOModule module)
     case ObIOModule::TMP_TENANT_MEM_BLOCK_IO:
       ret_name = "TMP_TENANT_MEM_BLOCK_IO";
       break;
+    case ObIOModule::SSTABLE_MACRO_BLOCK_WRITE_IO:
+      ret_name = "SSTABLE_MACRO_BLOCK_WRITE_IO";
+      break;
     default:
       break;
   }
diff --git a/src/share/io/ob_io_define.h b/src/share/io/ob_io_define.h
index c00830d0d..2a14e6d63 100644
--- a/src/share/io/ob_io_define.h
+++ b/src/share/io/ob_io_define.h
@@ -66,7 +66,8 @@ enum ObIOModule {
   LINKED_MACRO_BLOCK_IO = 20017,
   HA_MACRO_BLOCK_WRITER_IO = 20018,
   TMP_TENANT_MEM_BLOCK_IO = 20019,
-  MAX_IO = 20020
+  SSTABLE_MACRO_BLOCK_WRITE_IO = 20020,
+  MAX_IO = 20021
 };
 
 const char *get_io_sys_group_name(ObIOModule module);
diff --git a/src/storage/blocksstable/ob_macro_block.cpp b/src/storage/blocksstable/ob_macro_block.cpp
index fc2e1e16c..f861d4313 100644
--- a/src/storage/blocksstable/ob_macro_block.cpp
+++ b/src/storage/blocksstable/ob_macro_block.cpp
@@ -378,6 +378,7 @@ int ObMacroBlock::flush(ObMacroBlockHandle &macro_handle,
     write_info.buffer_ = data_.data();
     write_info.size_ = data_.upper_align_length();
     write_info.io_desc_.set_wait_event(ObWaitEventIds::DB_FILE_COMPACT_WRITE);
+    write_info.io_desc_.set_group_id(ObIOModule::SSTABLE_MACRO_BLOCK_WRITE_IO);
     write_info.io_timeout_ms_ = std::max(GCONF._data_storage_io_timeout / 1000, DEFAULT_IO_WAIT_TIME_MS);
     if (OB_FAIL(macro_handle.async_write(write_info))) {
       STORAGE_LOG(WARN, "Fail to async write block", K(ret), K(macro_handle), K(write_info));