Aiming at face Tri-networks integration demand bearing network/core backbone, carry out research of security control technical structure , key technologies and standards systematic In Tri-networks integration environment, to Build a safer control system that includes Facing the Tri-networks integration of business, network, content, behavior, etc. Research oriented business level controls and abnormal behavior of preventing high-speed low delay safety control equipment, builds the control center system, realize the legality of different modal information content safety monitoring control, network security situation analysis and display, control strategy of unified management and dynamic maintenance, and other functions. validation the functions and performance of security control network system, argumentation the feasibility and evolution ability of the fusion network security control system structure.