Drugs to increase bone density, mainly include the following: First, calcium: such as calcium gluconate, calcium chloride, calcium carbonate, calcium sulfate, etc., combined with vitamin D can enhance bone strength. Second, drugs that inhibit bone resorption: such as alendronate tablets and calcitonin, which can inhibit the activity of osteoclasts and prevent osteoporosis. Third, drugs that promote calcium absorption: such as osteotriol, alfa osteoclasts, all can accelerate calcium deposition and enhance bone density. The above types of drugs are commonly used clinically as anti-osteoporosis drugs, which can make patients’ clinical symptoms relieved and avoid osteoporotic fractures. In addition to the use of the above drugs, patients also need to adhere to exercise, with sunlight exposure, in order to make the bone density continue to increase.