The integrated network is the"dominating point"of the cyberspace infrastructure and the"winning point"where information advantage is transformed into confrontation advantage.Facing the new attack threats and new complex challenges of the integrated network,the transformative impact of the integrated network on the existing protection mechanism and the associated and secondary risks are analyzed,the concept of network security and technical institutional security strategies are proposed,respond to the associated risks with the idea of essential security,and respond to the secondary risks with the idea of active defense,so as to provide technical insights in the field,build up the national defense capability in cyberspace,guarantee the national core security,and shape a strong network nation.