diff --git a/mindspore/ccsrc/runtime/device/ascend/profiling/reporter/desc_reporter.cc b/mindspore/ccsrc/runtime/device/ascend/profiling/reporter/desc_reporter.cc
index 582b9a125d8..77a3c17ac6d 100644
--- a/mindspore/ccsrc/runtime/device/ascend/profiling/reporter/desc_reporter.cc
+++ b/mindspore/ccsrc/runtime/device/ascend/profiling/reporter/desc_reporter.cc
@@ -19,7 +19,7 @@
 #include "runtime/device/ascend/profiling/profiling_manager.h"
 #include "utils/log_adapter.h"
 
-constexpr size_t kReportMaxLen = 2048;
+constexpr size_t kReportMaxLen = 1024;
 
 namespace mindspore {
 namespace device {