Strengthening the education and reform of criminals, turning prisons into schools for reforming criminals, and striving to transform the vast majority of criminals into law-abiding citizens are great undertakings with strategic significance in prison work in China. According to the relevant provisions of China's prison law, we should focus on the following three specific tasks: 1, changing criminals' thoughts and correcting criminals' bad habits. 2. Improve the cultural knowledge of criminals. 3. Vocational and technical education.