Slipped tendon of the middle finger, i.e. rupture of the supporting band of the tendon of the middle finger, if it is a fresh injury, it can be treated conservatively by braking, and part of it can be recovered on its own, but the disadvantage is obvious compared with the surgical treatment; if it is an old injury, it should be treated surgically. After fresh injury of the supporting band around the tendon of the middle finger, the tendon can be reset by manipulation, and the affected finger can be braked locally, such as splint, plaster, finger clip, etc. After strict conservative treatment, part of it can be recovered. However, due to the long-term braking of the affected finger, it may cause stiffness and limited movement of the finger, while early functional exercises can be performed after surgical treatment, which has obvious advantages. If the injury to the support band around the tendon of the middle finger is old and conservative treatment is not effective, surgery should be performed to repair the support band, and early functional exercises can be performed after surgery. The functions of the hand are diverse and the anatomy is complex, once the injury occurs, it should go to the hospital in time and be diagnosed and treated under the guidance of the professional doctor, so as not to cause functional impairment.