IEEE802．11n是无线局域网技术的最新标准，介绍了基于802．11n的MIMO（多入多出）、OFDM（正交频分复用）和双频带等无线通信系统的关键技术，分析了在802．11n标准下WLAN的安全问题，通过数据加密、双向认证、动态WEP密钥和虚拟专用网络等方法，提出了基于802．11n的WLAN安全解决方案。 -IEEE802.11n is the latest wireless LAN technology standard introduced based on 802.11n, MIMO (Multiple Input Multiple Output), OFDM (orthogonal frequency division multiplexing) and dual-band wireless communication systems such as key technologies analyzed in 802 .11 n Standard WLAN security issues, through data encryption, mutual authentication and dynamic WEP key and virtual private network, the proposed 802.11n-based WLAN security solution.