diff --git a/be/src/vec/exec/scan/scanner_scheduler.cpp b/be/src/vec/exec/scan/scanner_scheduler.cpp
index f3e92619b726aba..15c76fc1ccd00ae 100644
--- a/be/src/vec/exec/scan/scanner_scheduler.cpp
+++ b/be/src/vec/exec/scan/scanner_scheduler.cpp
@@ -392,6 +392,12 @@ SimplifiedScanScheduler::SimplifiedScanScheduler(std::string sched_name, CgroupC
     INT_GAUGE_METRIC_REGISTER(_metric_entity, scan_scheduler_max_thread_number);
 }
 
+SimplifiedScanScheduler::~SimplifiedScanScheduler() {
+    stop();
+    LOG(INFO) << "Scanner sche " << _sched_name << " shutdown";
+    DorisMetrics::instance()->metric_registry()->deregister_entity(_metric_entity);
+}
+
 Status SimplifiedScanScheduler::start(int max_thread_num, int min_thread_num, int queue_size) {
     RETURN_IF_ERROR(ThreadPoolBuilder(_sched_name)
                             .set_min_threads(min_thread_num)
@@ -401,10 +407,12 @@ Status SimplifiedScanScheduler::start(int max_thread_num, int min_thread_num, in
                             .build(&_scan_thread_pool));
 
     _metric_entity->register_hook("update", [this]() {
-        this->scan_scheduler_running_tasks->set_value(_scan_thread_pool->num_active_threads());
-        this->scan_scheduler_queue_size->set_value(_scan_thread_pool->get_queue_size());
-        this->scan_scheduler_queue_capacity->set_value(_scan_thread_pool->get_max_queue_size());
-        this->scan_scheduler_max_thread_number->set_value(_scan_thread_pool->max_threads());
+        if (_scan_thread_pool != nullptr) {
+            this->scan_scheduler_running_tasks->set_value(_scan_thread_pool->num_active_threads());
+            this->scan_scheduler_queue_size->set_value(_scan_thread_pool->get_queue_size());
+            this->scan_scheduler_queue_capacity->set_value(_scan_thread_pool->get_max_queue_size());
+            this->scan_scheduler_max_thread_number->set_value(_scan_thread_pool->max_threads());
+        }
     });
 
     return Status::OK();
diff --git a/be/src/vec/exec/scan/scanner_scheduler.h b/be/src/vec/exec/scan/scanner_scheduler.h
index 30bea375df33210..7e6b951d6c45f5b 100644
--- a/be/src/vec/exec/scan/scanner_scheduler.h
+++ b/be/src/vec/exec/scan/scanner_scheduler.h
@@ -117,10 +117,7 @@ class SimplifiedScanScheduler {
 public:
     SimplifiedScanScheduler(std::string sched_name, CgroupCpuCtl* cgroup_cpu_ctl);
 
-    ~SimplifiedScanScheduler() {
-        stop();
-        LOG(INFO) << "Scanner sche " << _sched_name << " shutdown";
-    }
+    ~SimplifiedScanScheduler();
 
     void stop() {
         _is_stop.store(true);