The practice of cultivating and selecting innovative talents about the link of high school and university in Chongqing is systematically analyzed in this paper. Based on the theory of all-round development, through the empirical analysis of the link of high school and university activities in Chongqing University, this article summarizes the three levels and two combinations (TLTC) adolescent innovative talents cultivation and selection modes and ways. Several countermeasures and suggestions are also put forward in this paper from the following aspects:establishing a government-led innovation, long-term mechanism of innovative talents participating in colleges and secondary schools.