Osteoporosis usually requires lifelong calcium supplementation. Osteoporosis is a systemic metabolic bone disease, mostly due to a decrease in bone formation and an increase in bone resorption, resulting in a decrease in the calcium content of the bones. Patients with osteoporosis are more prone to fractures. This is because the occurrence of osteoporosis will lead to an increase in the brittleness of the bones, and fractures may occur after some minor falls, stumbles, and so on. Osteoporosis usually requires lifelong use of calcium tablets and calcium supplementation is the basic treatment. Depending on the degree of osteoporosis, the cause, age and other different situations, to choose different ways of calcium supplementation as well as time. It is necessary to go to a regular hospital in time to improve the X-ray examination, bone conversion marker examination and physical examination. According to the different conditions, follow the doctor’s instructions to choose different ways of calcium supplementation.