本文对无线网络通信技术发展历程进行了阐述，重点对4G通信的网络安全技术存在的问题进行了分析，并给 出了相应的防护措施。本文对于从事相关通信行业人员和网络安全人员都具有一定的积极意义。

This paper describes the development of wireless network communication technology, especially analyzes the existing problems of the 4G network security technology and proposes corresponding protection measures. This paper has a certain positive significance for the relevant communication and network security personnel.