Under the background of National innovation-driven Strategy and overall promotion of "double first-class" construction, the importance of cultivating young scientific and technological talents in colleges and universities has been further highlighted. In view of the contradiction between the peak of creativity and the bottleneck period of growth of young scientific and technological workers, the School of Mechanical Engineering of Tianjin University has innovatively proposed a "tree-type" training model, it has provided a good model for the cultivation of young scientific and technological talents in colleges and universities by organizing guidance and promoting the growth process of young talents.