Cooperative education is important for application-oriented talents cultivation.The college level science and technology contests hosted by enterprises contain a special mechanism of school-enterprise cooperation. This mechanism has three key elements. Firstly, the network technique applied in organizational process by enterprises can reduce the administration cost of interacting with students. Secondly, with material rewards and employment opportunity awards, enterprises can incent students to participate in these contests. Thirdly, contests subjects are directly related to the enterprises' primary business or product. They insure the contests selects talents match the enterprises' demand. With these elements, the enterprises can recruit talents at a reasonable cost, and students can also access extra teaching resources and opportunities of practicing and demonstrating themselves. This mechanism of school-enterprise cooperation shows a good example of cooperative education.