The cost of a bone density test is about 100~300 RMB, and the price may vary from one medical institution to another, so it is recommended to consult the local hospital before the test. Bone density test is mainly used to assess the strength of bones, clinical examination methods mainly include ultrasound bone density test, dual-energy X-ray examination, ultrasound bone density test cost about 100 yuan, dual-energy X-ray examination cost is relatively more expensive, may be about 300 yuan, different hospitals also have different charges. Bone density test can be used to assess the severity of osteoporosis. Communicate fully with your doctor before having a bone density test, choose loose clothing, take away metal objects, pregnant women should inform their doctors in advance, and it is recommended to go to a regular hospital for the test.