Smoking can cause a variety of diseases, and the top 3 smoking-related causes of death are chronic obstructive pulmonary disease, lung cancer, and ischemic heart disease. Smoking cessation strategies include: 1. brief advice: can be directed to the larger smoking cessation population, the international general 5A method, that is, ask (Ask) the patient’s smoking status and record, at least once a year to advise (Advise) smokers to quit, assess (Assess) whether the smoker is ready to quit and provide help, help (Assist) smokers to provide medication and support, and after quitting smoking Arrange a follow-up visit within the first week of quitting. 2. Multi-stage supportive treatment: There is a counseling phase and a treatment phase, starting with the counseling phase and followed by a weekly treatment phase. The goal is to achieve complete cessation and reduce relapse rates by treating groups or individuals to enable smokers to quit early, while closely monitoring the use of medications. Multi-stage supportive treatment has a high success rate and can help tobacco-dependent individuals who do not benefit from brief advice. Smoking cessation medications: Current smoking cessation medications include varenicline, bupropion, and nicotine replacement therapy (NRT), all of which are effective in slowing withdrawal symptoms and improving the success rate of smokers who quit.