In the new era of mobile Internet,network security education in colleges and universities is an important way to realize the national "network power" strategy. It is an inevitable choice to maintain network ecological environment and a basic method to guarantee the healthy growth of students. However,the current network security education in colleges and universities in China is facing the reality that the institutional system is still to be improved,the cooperation mechanism is still weak,the educational capacity needs to be improved and the platform setting urgently needs to be strengthened. Based on this,from four dimensions of systematic educational system,diversified educational mechanism,professional educational capacity,and comprehensive education platform,constructing a "four in one" innovation mechanism of university network security education in the mobile Internet age is the basic strategy to solve the current problems of university network security education.