For the surgical approach of ulnar coronoid fracture, there are generally two approaches under clear examination, including the medial approach and the anterior approach, and the specific approach is the anterior approach is at the anterior transverse process of the elbow joint, and the incision continues to the lateral side under the elbow joint starting from the medial side on top of the transverse process in an S-shape, and the size and direction of the incision should be chosen according to the specific situation of the fracture, and attention should be paid to the protection of nerves and blood vessels after the incision. After the incision, care should be taken to protect the nerves and blood vessels, and blunt separation is performed to find the site of the coronoid fracture. The medial approach is a modification of the anterolateral approach, and special attention should be paid to protecting the ulnar nerve during the medial approach. Although the medial approach is less traumatic, it is important to pay attention to the specific situation of the coronoid fracture and not to compromise the exposure because of the small trauma, and both need to pay attention to the protection of the vessels and nerves.