Calcium deficiency in the elderly will lead to a decrease in bone mass throughout the body, resulting in osteoporosis, which can cause pain in many bones and joints throughout the body, as well as hunchback or height loss, and may easily lead to lumbar spine, hip and wrist fractures. If calcium supplementation and other anti-osteoporosis treatments are not given in time after the condition is detected, calcium will continue to be lost, and systemic diseases, such as osteoporosis, will occur after a certain level of calcium loss. Once osteoporosis occurs, the patient’s quality of life will be reduced, and it is easy to cause recurrent fractures after a fall, so it is necessary to provide calcium supplementation and preventive treatment for osteoporosis in the elderly.