diff --git a/common/inc/pwrerr.h b/common/inc/pwrerr.h
index 3550d74e2b6baace3ec2d81ed1026ca46721a3d9..8c41de09ebc7441e141086f3ef2020ae57f3e287 100644
--- a/common/inc/pwrerr.h
+++ b/common/inc/pwrerr.h
@@ -56,6 +56,7 @@ enum PWR_RtnCode {
     PWR_ERR_CONTROL_AUTH_OWNERED_BY_OTHERS,
     PWR_ERR_CONTROL_AUTH_NO_PERMISSION = 405,
     PWR_ERR_NOT_SUPPORT_TASK_TYPE,
+    PWR_ERR_NO_PROCS_BY_KEYWORD,
     PWR_ERR_FILE_ACCESS_FAILED = 500,
     PWR_ERR_FILE_FPRINT_FAILED,
     PWR_ERR_FILE_FFLUSH_FAILED,
diff --git a/pwrapis/src/procservice.c b/pwrapis/src/procservice.c
index 1f8a7c7fcff86c6764bb59314b7f5146a4e50c7a..d627559e64c136372d4bff552634f69c42f317c3 100644
--- a/pwrapis/src/procservice.c
+++ b/pwrapis/src/procservice.c
@@ -181,6 +181,9 @@ static int QueryProcs(const char *keyWords, pid_t procs[], int maxNum, int *proc
         (*procNum)++;
     }
     pclose(fp);
+    if (*procNum == 0) {
+        return PWR_ERR_NO_PROCS_BY_KEYWORD;
+    }
     return PWR_SUCCESS;
 }