Primary prevention: It should start from children and adolescents, such as paying attention to reasonable dietary nutrition, consuming more food containing high Ca and P, such as fish, shrimp, shrimp skin, kelp, milk (250ml contains Ca300mg), dairy products, bone broth, eggs, beans, refined grains, sesame seeds, melon seeds, green leafy vegetables, etc. Adhere to a scientific lifestyle, such as adhere to physical exercise, more sunbathing, do not smoke, do not drink alcohol, less coffee, strong tea and carbonated beverages, less sugar and salt. Secondary prevention: When people reach middle age, especially women after menopause, bone loss is accelerated. Bone density examination should be conducted annually during this period, and preventive and curative measures should be taken early for people with rapid bone loss. Pay attention to the active treatment of diseases related to osteoporosis, such as diabetes, rheumatoid arthritis, steatorrhea, chronic nephritis, hyperparathyroidism/hyperthyroidism, bone metastatic cancer, chronic hepatitis, liver cirrhosis, etc. Tertiary prevention: Patients with degenerative osteoporosis should be actively treated with drugs to inhibit bone resorption and promote bone formation, and measures to prevent falls, bumps, trips and upsets should also be strengthened. For middle-aged and elderly fracture patients should actively operate, implement strong internal fixation, early activity, physical therapy, physiotherapy psychological, nutrition, calcium supplementation, pain relief, promote bone growth, curb bone loss, improve immune function and overall quality and other comprehensive treatment.