Osteoporosis can be divided into three major categories according to their therapeutic effects: 1) basic drugs: such as calcium, vitamin D, elements essential for promoting normal bone development; 2) drugs that inhibit bone resorption: estrogens, bisphosphonates, calcitonin, selective estrogen receptor modulators, etc., are the most commonly used anti-osteoporosis drugs; 3) drugs that promote bone formation: like fluoride, parathyroid hormones, and androgens, vitamin K, etc., are mainly used for the treatment of severe osteoporosis. A reasonable combination of the above drugs is usually needed to achieve the desired effect.