Abstract: Objective Using a common DR chest radiography system to realize a long bone stitching technology. Methods Introduce the role of long bone stitching technology in medical diagnosis and treatment, and the principle of long bone stitching technology to make a long bone stitching radiographic device, and combine with the chest radiography system to take the long bone stitching image experiment. Results The hospitals of class Ⅱ (or more lower levels) can realize the long bone stitching technology using a common DR chest radiography system. Conclusion Using this technology can save the hospital costs, reduce the burden on patients, achieve good social and economic benefits.