1.Appropriate isolation measures should be taken for all patients with tuberculosis bacteria found inside their sputum. 2.The place where infectious tuberculosis patients live should be disinfected with air regularly, the living room should be well ventilated, the articles used by tuberculosis patients should be handled strictly, and their sputum should be disinfected carefully. As TB patients usually have to develop good hygiene habits, do not spit anywhere, and try not to go to public places to avoid infecting others. 3.Improve body resistance by strengthening nutrition and participating in appropriate physical exercise. 4.For the high-risk group with a history of close contact, preventive treatment can be considered. 5.Tuberculosis can be prevented by BCG vaccination for newborns.