This is scientific research on how to overcome the current shortage of high school teachers. Population growth and economic deterioration are the main causes of reduced investment in education; Schools receive little investment in additional construction to meet the learning needs of students; Investment in teacher training has not been increased. Besides the pressure at work, teachers receive low salaries, which is also the cause of teachers quitting their jobs. If this situation persists, it will affect the quality of education and the source of high-quality technical labor in the future. To conduct this research, the authors conducted many surveys on students, parents, teachers, principals, leaders of the education industry and synthesized opinions in the media and press. The research work suggests that the most effective solution to the current teacher shortage is to build shared e-learning and e-educational resources for high school students nationwide combined with opening online classes as well as tests and exams. These studies are also the premise for digital transformation in education.