The 3rd International Conference on Networks Security, Wireless Communications and Trusted Computing (NSWCTC2011) serves as a forum for researchers, industry professionals, and academics interested in networks security, wireless communications and trusted computing, with the goal of fostering interaction.The NSWCTC2011 Proceedings will be published by IEEE Computer Society's CPS, all papers accepted will be included in IEEE Xplore,and arrange for indexing service(EI and ISTP).