The mechanisms for preventing and controlling AIDS are to strengthen publicity and education, cleanliness, wearing condoms, strengthening personal protection, and enhancing adherence to antiretroviral medication. 1. At present, the trend of AIDS is moving towards the younger age groups (high school and college students) and the elderly, so school education and social education should be strengthened to enhance the understanding of AIDS and reduce the spread of the disease. 2. Cleanliness: Cut off the sexual transmission of HIV, refuse drugs, don’t share needles; don’t have promiscuous sex, refuse one-night stands, keep a single sexual partner, try not to go to KTV, nightclubs and other places where there are many prostitutes, don’t have intimate contact with strangers, and be clean and self-respecting. 3. Wear condoms: Use condoms correctly and practice safe sex. 4. Strengthen personal protection: medical personnel, anti-narcotics police, etc., should strengthen personal protection in the work, to avoid occupational exposure. 5. Enhance adherence to antiretroviral medication: if possible, use HIV blocking medication as soon as possible after high-risk behaviors; AIDS patients should take HIV antiretroviral medication on time and in accordance with the dosage in order to improve immunity and reduce viral load, which can also reduce the chances of transmission. 6. Blocking mother-to-child transmission: If HIV infection is detected in pregnant women, they should be given appropriate antiviral drugs before delivery and preventive treatment for the fetus and the newborn, which can play a role in blocking the transmission. In general, people should keep themselves clean to prevent the spread of the disease, and when there is a possibility of infection, they should go to the hospital for evaluation and antiviral drug blocking treatment, and pay attention to review.