This paper puts forward the requirement for implementing the new flight technology based on the policy and rules from the International Civil Aviation Organization, Federal Aviation Administration of USA, Europe Aviation Safety Administration, and Civil Aviation Administration of China. These new flight technologies are including Performance Based Navigation, AutoDependent Surveillance Broadcasting, GNSS（Global Navigation Satellite System）Landing System. It summarizes the system architecture of traditional communication system, navigation system, and surveillance system. Combining with advanced avionics system architecture design technology and advanced avionics data bus networks technology, it develops a new system architecture of integrated communication system, navigation system, and surveillance system, based on the experience of civil aircraft development engineering. The new high level integrated system architecture is open to add new application software, with flexibility for extensional function. At the end, the paper also points out the issues which may be faced on system engineering implementation, including system safety analysis and certification, time delay and signal distortion.