diff --git a/src/storage/tx/ob_dup_table_lease.cpp b/src/storage/tx/ob_dup_table_lease.cpp
index cb44a390b..659e1495c 100644
--- a/src/storage/tx/ob_dup_table_lease.cpp
+++ b/src/storage/tx/ob_dup_table_lease.cpp
@@ -952,9 +952,9 @@ int ObDupTableLSLeaseMgr::LeaderLeaseMgrStatFunctor::operator()(
     }
     // update cnt_ for next read
     cnt_++;
-
-    DUP_TABLE_LOG(DEBUG, "insert one row in svr list", K(ret), K(tmp_stat), K(cnt_),
-                  K(hash_pair.second.confirmed_lease_info_), K(collect_arr_));
+    // for debug
+    DUP_TABLE_LOG(INFO, "insert one row in svr list", K(ret), K(tmp_stat), K(cnt_),
+                  K(hash_pair.second), K(collect_arr_));
   }
 
   return ret;
diff --git a/src/storage/tx/ob_dup_table_tablets.cpp b/src/storage/tx/ob_dup_table_tablets.cpp
index 2d5d22ea3..0a05b4bf5 100644
--- a/src/storage/tx/ob_dup_table_tablets.cpp
+++ b/src/storage/tx/ob_dup_table_tablets.cpp
@@ -1237,6 +1237,16 @@ int64_t ObLSDupTabletsMgr::get_readable_tablet_set_count()
   return cnt;
 }
 
+int64_t ObLSDupTabletsMgr::get_need_confirm_tablet_set_count()
+{
+  int64_t cnt = 0;
+
+  SpinRLockGuard guard(dup_tablets_lock_);
+  cnt = need_confirm_new_queue_.get_size();
+
+  return cnt;
+}
+
 int64_t ObLSDupTabletsMgr::get_all_tablet_set_count()
 {
   int64_t cnt = 0;
@@ -1256,6 +1266,44 @@ int64_t ObLSDupTabletsMgr::get_all_tablet_set_count()
   return cnt;
 }
 
+// check exist tablet or is logging
+bool ObLSDupTabletsMgr::check_removing_tablet_exist()
+{
+  bool bool_ret = false;
+  SpinRLockGuard guard(dup_tablets_lock_);
+
+  if (OB_ISNULL(removing_old_set_)) {
+    bool_ret = false;
+  } else if (removing_old_set_->size() > 0) {
+    bool_ret = true;
+  } else if (removing_old_set_->get_change_status()->is_modifiable()){
+    bool_ret = true;
+  } else {
+    bool_ret = false;
+  }
+
+  return bool_ret;
+}
+
+// check exist tablet or is logging
+bool ObLSDupTabletsMgr::check_changing_new_tablet_exist()
+{
+  bool bool_ret = false;
+  SpinRLockGuard guard(dup_tablets_lock_);
+
+  if (OB_ISNULL(changing_new_set_)) {
+    bool_ret = false;
+  } else if (changing_new_set_->size() > 0) {
+    bool_ret = true;
+  } else if (changing_new_set_->get_change_status()->is_modifiable()) {
+    bool_ret = true;
+  } else {
+    bool_ret = false;
+  }
+
+  return bool_ret;
+}
+
 int ObLSDupTabletsMgr::leader_takeover(const bool is_resume,
                                        const bool recover_all_readable_from_ckpt)
 {
diff --git a/src/storage/tx/ob_dup_table_tablets.h b/src/storage/tx/ob_dup_table_tablets.h
index 0dad65414..f99cf28b1 100644
--- a/src/storage/tx/ob_dup_table_tablets.h
+++ b/src/storage/tx/ob_dup_table_tablets.h
@@ -550,6 +550,9 @@ public:
   int64_t get_dup_tablet_count();
   bool has_dup_tablet();
   int64_t get_readable_tablet_set_count();
+  int64_t get_need_confirm_tablet_set_count();
+  bool check_removing_tablet_exist();
+  bool check_changing_new_tablet_exist();
   int64_t get_all_tablet_set_count();
 
   int leader_takeover(const bool is_resume, const bool recover_all_readable_from_ckpt);
diff --git a/src/storage/tx/ob_dup_table_util.cpp b/src/storage/tx/ob_dup_table_util.cpp
index ee8d2766f..c81da67a4 100644
--- a/src/storage/tx/ob_dup_table_util.cpp
+++ b/src/storage/tx/ob_dup_table_util.cpp
@@ -657,6 +657,7 @@ int ObDupTableLSHandler::ls_loop_handle()
 {
   int ret = OB_SUCCESS;
   int tmp_ret = OB_SUCCESS;
+  // TODO check stopped
   if (!is_inited() || OB_ISNULL(lease_mgr_ptr_) || OB_ISNULL(tablets_mgr_ptr_)
       || OB_ISNULL(ts_sync_mgr_ptr_)) {
     ret = OB_NOT_INIT;
@@ -664,9 +665,13 @@ int ObDupTableLSHandler::ls_loop_handle()
   } else if (!ls_state_helper_.is_active_ls()) {
     ret = OB_LS_OFFLINE;
     DUP_TABLE_LOG(WARN, "the ls is not active", K(ret), KPC(this));
-  } else if (!has_dup_tablet()) {
+  } else if (!check_tablet_set_exist()) {
+    // if tablet set not exist,
+    // return OB_NO_TABLET and remove ls id form map
+    // else do ls loop handle
     ret = OB_NO_TABLET;
-    DUP_TABLE_LOG(INFO, "no dup tablet, no need to do loop worker", K(ret), KPC(tablets_mgr_ptr_));
+    DUP_TABLE_LOG(INFO, "no dup tablet, no need to do loop worker", K(ret),
+                  KPC(tablets_mgr_ptr_));
   } else {
     if (ls_state_helper_.is_leader()) {
       if (OB_ISNULL(log_operator_) || !log_operator_->is_busy()) {
@@ -1104,6 +1109,37 @@ bool ObDupTableLSHandler::has_dup_tablet()
   return has_dup;
 }
 
+// if return false, there are no tablets and tablet set need log
+bool ObDupTableLSHandler::check_tablet_set_exist()
+{
+  bool bool_ret = false;
+
+  if (OB_ISNULL(tablets_mgr_ptr_)) {
+    bool_ret = false;
+  } else {
+    int64_t readable_and_need_confirm_set_count =
+              tablets_mgr_ptr_->get_readable_tablet_set_count()
+              + tablets_mgr_ptr_->get_need_confirm_tablet_set_count();
+
+    // if readable and need confirm set count > 0, return true
+    if (readable_and_need_confirm_set_count > 0 ) {
+      bool_ret = true;
+    } else {
+      // if changing new and removing set exist return true
+      bool chaning_and_removing_tablet_exist =
+          tablets_mgr_ptr_->check_changing_new_tablet_exist()
+          || tablets_mgr_ptr_->check_removing_tablet_exist();
+      if (chaning_and_removing_tablet_exist) {
+        bool_ret = true;
+      } else {
+        bool_ret = false;
+      }
+    }
+  }
+
+  return bool_ret;
+}
+
 int ObDupTableLSHandler::get_local_ts_info(DupTableTsInfo &ts_info)
 {
   int ret = OB_SUCCESS;
diff --git a/src/storage/tx/ob_dup_table_util.h b/src/storage/tx/ob_dup_table_util.h
index ca9c4309b..5d99423ec 100644
--- a/src/storage/tx/ob_dup_table_util.h
+++ b/src/storage/tx/ob_dup_table_util.h
@@ -179,6 +179,7 @@ public:
 
 public:
   int64_t get_dup_tablet_count();
+  bool check_tablet_set_exist();
   bool has_dup_tablet();
   int gc_dup_tablets(const int64_t gc_ts, const int64_t max_task_interval);
   int get_local_ts_info(DupTableTsInfo &ts_info);