diff --git a/cpp/src/db/scheduler/task/SearchTask.cpp b/cpp/src/db/scheduler/task/SearchTask.cpp
index 2bfac90e20..141c93eb5f 100644
--- a/cpp/src/db/scheduler/task/SearchTask.cpp
+++ b/cpp/src/db/scheduler/task/SearchTask.cpp
@@ -168,6 +168,14 @@ std::shared_ptr<IScheduleTask> SearchTask::Execute() {
             ClusterResult(output_ids, output_distence, context->nq(), spec_k, result_set);
             rc.Record("cluster result");
 
+
+            SERVER_LOG_DEBUG << "Query Result: ";
+            for(auto& id2score_vector: result_set) {
+                for(auto& pair: id2score_vector) {
+                    SERVER_LOG_DEBUG << "id: " << pair.first << ", distance: " << pair.second;
+                }
+            }
+
             //step 4: pick up topk result
             TopkResult(result_set, inner_k, context->GetResult());
             rc.Record("reduce topk");