diff --git a/tests/system-test/1-insert/alter_database.py b/tests/system-test/1-insert/alter_database.py
index 8de43b8ee8..6a831b88ff 100644
--- a/tests/system-test/1-insert/alter_database.py
+++ b/tests/system-test/1-insert/alter_database.py
@@ -4,7 +4,8 @@ import time
 import socket
 import os
 import threading
-
+import psutil
+import platform
 from util.log import *
 from util.sql import *
 from util.cases import *
@@ -17,6 +18,14 @@ class TDTestCase:
         tdLog.debug("start to execute %s" % __file__)
         tdSql.init(conn.cursor(), logSql)
         self.buffer_boundary = [3, 4097, 8193, 12289, 16384]
+        # remove the value > free_memory, 70% is the weight to calculate the max value
+        if platform.system() == "Linux" and platform.machine() == "aarch64":
+            mem = psutil.virtual_memory()
+            free_memory = mem.free * 0.7 / 1024 / 1024
+            for item in self.buffer_boundary:
+                if item > free_memory:
+                    self.buffer_boundary.remove(item)
+
         self.buffer_error = [self.buffer_boundary[0] -
                              1, self.buffer_boundary[-1]+1]
         # pages_boundary >= 64