无线局域网技术和其它技术相比尽管有很多优点 ,但是仍然没有被广泛应用 ,最主要的一个原因就是它不能提供足够的安全性。通过无线网传输的数据很可能面临被泄密的危险。本文提供了一种基于 Proxy的无线网安全模型 ,首先分析了无线网被攻击的方式 ,然后给出了一些常见的解决无线网安全的技术 ,最后提出了基于 Proxy的安全模型及它的实现 Compared with other technologies, wireless LAN technology, though it has many advantages, is still not widely used, one of the most important reasons is that it can not provide enough security. Data transmitted over the wireless network is at risk of being leaked. This paper provides a Proxy-based wireless network security model. Firstly, it analyzes the way the wireless network is attacked, and then gives some common technologies to solve the security problem of the wireless network. At last, it proposes a Proxy-based security model and its implementation