The team spirit cultivation for modern undergraduate is basic protection to promote their development by strengthening the validity and direction of education in ideology and politics. Based on the construction principles which are guiding and targeted, scientific and comprehensive, educational and incentive, counise and effective, the evaluation system of team spirit of undergraduates is built in this research report by Delphi consulting method and Analytic Hierarchy process. The system includes 3 firstr class index signs, 11second-class index signs and 30 third class index signs. The evaluation methods of the evaluation system are indicated from some aspects, such as evaluation organizations, evaluation procedures, evaluation time and treatment evaluation results to undergraduates. Some suggestions for the usage of the evaluation system are also given form some aspects, such as evaluation content, evaluation ways, evaluation management, evaluation results, evaluation function and improvement of evaluation system.