The occurrence of osteoporosis is related to many factors, some of which cannot be changed, such as genetic factors, ethnicity, and geography. (1) Prevention of osteoporosis should start from childhood to improve peak bone mass and increase the reserve capacity against osteoporosis, thus delaying the occurrence of osteoporosis or reducing its degree; (2) Pay attention to nutritional hygiene, protein, vitamins (especially vitamin D) and calcium and phosphorus supplementation, improve dietary structure, and consume more calcium-rich foods (3) pay attention to the relationship between exercise and health, and develop a good habit of moderate daily exercise from childhood throughout life; (4) receive more sunbathing; (5) change bad habits, do not smoke, or at least do not smoke excessively, and do not drink a lot of alcohol; (6) certain drugs have adverse effects on bone metabolism, when using drugs, we must weigh the pros and cons, do not use drugs arbitrarily, do not abuse drugs.