Intercondylar fracture of the humerus, after trauma to the elbow joint, there is severe pain, widespread compression pain, swelling is obvious, may be accompanied by subcutaneous bruising. It is a fracture that occurs between the medial and lateral condyles of the humerus and its adjacent parts. It is caused by direct impact on the ground when the elbow is in the flexed position and may also be due to upward impact of the ulnar humerus. The ulnar humerus is triangular in section, and when violence is transmitted to this part, the ulnar humerus is like a wedge hitting the talonavicular groove between the inner and outer condyles, resulting in the separation and displacement of the two condyles, and the lower end of the humerus is displaced forward. 1.Manipulation of plaster cast fixation is suitable for type I and II fracture with mild separation, first squeeze the two condyles to make them reset, then fix the displacement of the supracondylar part, and finally fix the elbow joint in the neutral position for 4-6 weeks with the anterior and posterior casts of the long-arm casts. 2, can not be closed reset or for some reason failed to timely treatment of open injury, feasible ulnar hawksbill traction, combined with closed correction, in the process of traction can be an early start of functional exercises. Traction is usually 4-6 weeks, or 4 weeks to go to traction and then use a plaster cast to protect the brake for 2 weeks. 3, in order to accurately reset and early functional exercise, for type III, IV fracture can be cut and reset, with plate and screw fixation, as far as possible, without external fixation, postoperative days ~ 2 weeks can start elbow joint functional exercise. 4.Elderly patients, severely comminuted fractures and patients with other diseases that are not suitable for surgery or long-term immobilization can be braked with a neck and wrist sling so that the elbow joint is in a position of 90°flexion, and early functional exercises can be started.