The training model of "three plus one" for practical personnel of electrical specialty is provided. It also sets up practical teaching model and base of strong electric and weak electric specialty by the following aspects such as discussing deeply about making teaching program and plan，reforming practical teaching contents and methods，evaluating practice results comprehensively，signing master-apprentice training contract，guiding the graduation project jointly by teachers and engineers, reinforcing the base building of the cooperation industry and school. The result shows that industry and school cooperation is an important and effective way of training practical personnel in electrical specialty. It is beneficial for students to apply theory to practice，improve their practical ability，link up teaching，research and productive practice，as well as the development of enterprises and techniques renewing.