diff --git a/tools/aa/src/shell_command.cpp b/tools/aa/src/shell_command.cpp
index d89f16137cdfeedc44c895020dfad4dec4a90d61..f1f4cec5b9da079c842f37832d0253778e0bea67 100644
--- a/tools/aa/src/shell_command.cpp
+++ b/tools/aa/src/shell_command.cpp
@@ -32,6 +32,10 @@ ShellCommand::ShellCommand(int argc, char* argv[], std::string name)
         cmd_ = "help";
         return;
     }
+    if (argv == nullptr) {
+        TAG_LOGE(AAFwkTag::AA_TOOL, "null argv");
+        return;
+    }
     cmd_ = argv[1];
     for (int i = 2; i < argc; i++) {
         argList_.push_back(argv[i]);