近年来,随着手机的普及应用,人们时常会收到欺作短信与骚扰电话,特别是对于老人与小孩这些防范意识薄弱的群体来说存在着严重的隐患。本文基于Android系统,对手机防火墙的设计与实现进行了研究,通过过滤诈骗短信与恶意电话,来监控与保护人们的通讯安全。 In recent years, with the popularization and application of mobile phones, people often receive bullying texting and harassing calls, especially for the elderly and children who are vulnerable to prevention. There are serious hidden dangers. This article based on the Android system, the design and implementation of the mobile phone firewall has been studied through the filtering of fraud messages and malicious calls to monitor and protect people’s communications security.