As the information network plays a more and more important role globally, the traditional network theories and technologies , especially those related to network security, can no longer meet the network development requirements . Offering the system with secure and trusted services has become a new focus in network res earch . This paper first discusses the meaning of and aspects involved in the trusted network. According to this paper, the trusted network should be a network where the network s and users behaviors and their results are always predicted and manageable . The trustworthiness of a network mainly involves three aspects : service provider, information transmission and terminal user. This paper also analyzes the trusted network in terms of trusted model for network/user behaviors , architecture of trusted network, s ervice survivability and network manageability, which is designed to give ideas on solving the problems that may be faced in developing the trusted network.