中国的科学技术不断发展和完善,促进了相应无线网络如4G的应用发展,4G移动通信为人们的工作和生活带来便利提升效率,促使人们的交流方式发生大的革新改变的同时,其安全技术问题仍有待改善。本文从4G通信技术的结构特点、所处通信背景、4G通信安全以及相应的防护措施各个方法对4G通信技术进行分析。 The continuous development and improvement of science and technology in China has promoted the application development of the corresponding wireless networks such as 4G, while 4G mobile communications have brought convenience and efficiency to people’s work and life, and have brought about major changes in the way of communication. At the same time, their security Technical problems still need to be improved. This article analyzes the 4G communication technology from the structural characteristics of 4G communication technology, the background of the communication, the safety of 4G communication and the corresponding protective measures.