diff --git a/tests/script/api/makefile b/tests/script/api/makefile
index 6739794cc8e09025ec18ee92100453edce082f77..6d55d8a75f7efe4383c81781165b2246e7a893a0 100644
--- a/tests/script/api/makefile
+++ b/tests/script/api/makefile
@@ -15,8 +15,11 @@ exe:
 	gcc $(CFLAGS) ./stopquery.c  -o $(ROOT)stopquery $(LFLAGS)
 	gcc $(CFLAGS) ./dbTableRoute.c  -o $(ROOT)dbTableRoute $(LFLAGS)
 	gcc $(CFLAGS) ./insertSameTs.c  -o $(ROOT)insertSameTs $(LFLAGS)
+	gcc $(CFLAGS) ./passwdTest.c  -o $(ROOT)passwdTest $(LFLAGS)
 
 clean:
 	rm $(ROOT)batchprepare
 	rm $(ROOT)stopquery
 	rm $(ROOT)dbTableRoute
+	rm $(ROOT)insertSameTs
+	rm $(ROOT)passwdTest
diff --git a/tests/script/api/passwdTest.c b/tests/script/api/passwdTest.c
new file mode 100644
index 0000000000000000000000000000000000000000..f3161047e88ac286bc6cce9d5660b573f5d217e9
--- /dev/null
+++ b/tests/script/api/passwdTest.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// TAOS standard API example. The same syntax as MySQL, but only a subset
+// to compile: gcc -o demo demo.c -ltaos
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "taos.h"  // TAOS header file
+
+#define nRepetition 1
+#define nTaos       10
+
+void Test(TAOS *taos, char *qstr);
+void passVerTestMulti(const char *host, char *qstr);
+
+int nPassVerNotifiedMulti = 0;
+
+void __taos_notify_cb(void *param, void *ext, int type) {
+  switch (type) {
+    case TAOS_NOTIFY_PASSVER: {
+      ++nPassVerNotifiedMulti;
+      printf("%s:%d type:%d user:%s ver:%d\n", __func__, __LINE__, type, param ? (char *)param : "NULL", *(int *)ext);
+      break;
+    }
+    default:
+      printf("%s:%d unknown type:%d\n", __func__, __LINE__, type);
+      break;
+  }
+}
+
+static void queryDB(TAOS *taos, char *command) {
+  int       i;
+  TAOS_RES *pSql = NULL;
+  int32_t   code = -1;
+
+  for (i = 0; i < nRepetition; ++i) {
+    if (NULL != pSql) {
+      taos_free_result(pSql);
+      pSql = NULL;
+    }
+
+    pSql = taos_query(taos, command);
+    code = taos_errno(pSql);
+    if (0 == code) {
+      break;
+    }
+  }
+
+  if (code != 0) {
+    fprintf(stderr, "failed to run: %s, reason: %s\n", command, taos_errstr(pSql));
+    taos_free_result(pSql);
+    taos_close(taos);
+    exit(EXIT_FAILURE);
+  } else {
+    fprintf(stderr, "success to run: %s\n", command);
+  }
+
+  taos_free_result(pSql);
+}
+
+int main(int argc, char *argv[]) {
+  char qstr[1024];
+
+  // connect to server
+  if (argc < 2) {
+    printf("please input server-ip \n");
+    return 0;
+  }
+
+  TAOS *taos = taos_connect(argv[1], "root", "taosdata", NULL, 0);
+  if (taos == NULL) {
+    printf("failed to connect to server, reason:%s\n", "null taos" /*taos_errstr(taos)*/);
+    exit(1);
+  }
+
+  passVerTestMulti(argv[1], qstr);
+
+  taos_close(taos);
+  taos_cleanup();
+}
+
+void passVerTestMulti(const char *host, char *qstr) {
+  TAOS *taos[nTaos] = {0};
+  char *userName = calloc(1, 24);
+  strcpy(userName, "root");
+
+  for (int i = 0; i < nTaos; ++i) {
+    taos[i] = taos_connect(host, "root", "taosdata", NULL, 0);
+    if (taos[i] == NULL) {
+      printf("failed to connect to server, reason:%s\n", "null taos" /*taos_errstr(taos)*/);
+      exit(1);
+    }
+
+    int code = taos_set_notify_cb(taos[i], __taos_notify_cb, userName, TAOS_NOTIFY_PASSVER);
+
+    if (code != 0) {
+      fprintf(stderr, "failed to run: taos_set_notify_cb since %d\n", code);
+    } else {
+      fprintf(stderr, "success to run: taos_set_notify_cb\n");
+    }
+  }
+
+  queryDB(taos[0], "create database if not exists demo1 vgroups 1 minrows 10");
+  queryDB(taos[0], "create database if not exists demo2 vgroups 1 minrows 10");
+  queryDB(taos[0], "create database if not exists demo3 vgroups 1 minrows 10");
+
+  queryDB(taos[0], "create table demo1.stb (ts timestamp, c1 int) tags(t1 int)");
+  queryDB(taos[0], "create table demo2.stb (ts timestamp, c1 int) tags(t1 int)");
+  queryDB(taos[0], "create table demo3.stb (ts timestamp, c1 int) tags(t1 int)");
+
+  strcpy(qstr, "alter user root pass 'taos'");
+  queryDB(taos[0], qstr);
+
+  for (int i = 0; i < 10; ++i) {
+    if (nPassVerNotifiedMulti >= nTaos) break;
+    sleep(1);
+  }
+
+  if (nPassVerNotifiedMulti >= nTaos) {
+    fprintf(stderr, "success to get passVer notification\n");
+  } else {
+    fprintf(stderr, "failed to get passVer notification\n");
+  }
+
+  // sleep(1000);
+
+  free(userName);
+}
\ No newline at end of file