The Technical Specification for Occupational Health Surveillance stipulates that the target diseases of health surveillance are

Legal analysis: for the purpose of prevention, according to the workers' occupational contact history, through regular or irregular medical health examination and collection of health-related data, the health status of workers is continuously monitored, the relationship between workers' health changes and the occupational hazards they are exposed to is analyzed, and the results of health examination and data analysis are reported to employers and workers themselves in time, so as to take timely intervention measures to protect workers' health. Occupational health monitoring mainly includes occupational health examination and occupational health monitoring file management. Occupational health examination includes medical follow-up and emergency health examination before, during and after employment.

Legal basis: Article 3 of the Labor Law of People's Republic of China (PRC) stipulates that workers enjoy the rights of equal employment and occupation selection, remuneration, rest and vacation, occupational safety and health protection, vocational skills training, social insurance and welfare, submission of labor dispute settlement and other labor rights stipulated by law. Laborers should complete labor tasks, improve their professional skills, implement labor safety and health laws and regulations, and observe labor discipline and professional ethics.

Article 3 of the Labor Contract Law of People's Republic of China (PRC) shall follow the principles of legality, fairness, equality, voluntariness, consensus, honesty and credibility when concluding a labor contract. The labor contract concluded according to law is binding, and the employer and the employee shall perform the obligations stipulated in the labor contract.