In order to improve the quality of undergraduate graduation design, this paper studies and improves the guidance method of electrical engineering graduation design based on the OBE concept. The graduation design teaching process was discussed around the topic selection stage, the topic opening stage, and the design stage. The main goal is to expand students' knowledge, enhance their engineering knowledge and improve their ability to solve practical engineering problems. The process inspection and guidance methods were optimized from the three levels of instructors, majors and colleges. The process inspection and guidance of colleges and specialties were online or offline. After the student selected the topic, the graduation design guidance and inspection of the instructor was conducted face to face or online. Through the questionnaire survey, this paper completed the achievement degree analysis of graduation design goals. The method proposed in this paper is beneficial to improving the practical ability and innovation ability of electrical engineering undergraduates.