In 2023, the retest line of electrical postgraduate entrance examination in Hefei University of Technology has been announced, with 337 points for academic masters and 360 points for professional masters. In the past two years, the electrical retest line of Hegong University has been relatively stable. The direction of power electronics and power transmission is a strong subject direction of electrical specialty in Polytechnic University. Before drawing lines in different directions, the competition in this direction was also the greatest. However, now all directions of Xueshuo are unified, and all directions of Zhushuo are unified.