The postgraduate subjects of electrical engineering in Hunan University are electrical engineering, power system analysis and power electronics analysis. According to the outline of electrical engineering re-examination published by the Graduate School of Hunan University, the re-examination of electrical engineering in Huda University includes three subjects: electrical engineering, power system analysis and power electronics analysis. The main examination methods are comprehensive interview, professional interview and English interview, and the candidates of the above three subjects choose the second one.