Supervision department of labor bureau. Official website, the Labor Bureau, shows that complaints about labor vocational training are under the supervision of the Supervision Department of the Labor Bureau. Based on the principle of "applying what you have learned", labor vocational training systematically trains all employees of enterprises, including workers, engineers and technicians, and production management personnel, so as to improve their political ethics, culture and technology, and production management level, and make them become professionals who are proficient in their major and understand modern science and technology and economic management.