diff --git a/frameworks/native/backup_ext/src/ext_extension.cpp b/frameworks/native/backup_ext/src/ext_extension.cpp
index f92dbab7c8c4060c65aede57daff9306409fdac4..30ac66a3844beeb282e7d141e820332c0e8ecfd3 100644
--- a/frameworks/native/backup_ext/src/ext_extension.cpp
+++ b/frameworks/native/backup_ext/src/ext_extension.cpp
@@ -1806,6 +1806,11 @@ ErrCode BackupExtExtension::HandleRestore(bool isClearData)
                 .GetCode();
         }
 
+        auto proxy = ServiceProxy::GetInstance();
+        if (proxy == nullptr) {
+            HILOGE("Failed to obtain the ServiceProxy handle");
+            return BError(BError::Codes::EXT_BROKEN_BACKUP_SA).GetCode();
+        }
         // async do restore.
         if (extension_->WasFromSpecialVersion() && extension_->RestoreDataReady()) {
             HILOGI("Restore directly when upgrading.");