In recent years, many graduates have trouble finding a job, at the same time, enterprises are hard to look for employees they want. In this paper, we focused on the "last mile" problem between universities and enterprises, and proposed a "3+1" cultivation model of engineering practical ability-oriented. Besides, the teaching content, teaching system and industry-university research cooperation attached with this model are studied in depth. Through establishing "3+1" training model, the rate of employment of computer science major and the quality of employment have been greatly improved. The proposed model also can provide reference value to implementation of the plan of cultivating excellent engineers in China to some extent.