Abstract: Daoist preventive medicine thoughts mainly include the following aspects: 1. Dao-qi-based concept of life; 2. Guiding view of preventing diseases; 3. Viewing disease prevention according to nature; 4. Hygiene view of active epidemic prevention. Daoist physicians Ge Hong and Sun Simiao both emphasized the important role of environmental hygiene and personal hygiene in preventing diseases and advocated that hygiene should be done to prevent the occurrence and spread of diseases during epidemics. This idea of active epidemic prevention has played an important role in disease prevention and control. 5. The concept of keeping in good health by internal cultivation and external cultivation. Daoism advocates giving full play to people's subjective initiative, actively carrying out spiritual and moral cultivation, and combining sports and health preservation methods to achieve the purpose of enhancing human health, consolidating righteousness, and preventing disease. Daoist prevention of diseases has risen to a moral requirement.

Key words: Daoism, Disease, Preventive medicine