Objective To discuss the effect and safety of Clavicular hook plate in the treatment of distal clavicle fracture and dislocation of the shoulder joint.Methods 54 patients with NeerⅡdistal clavicle fractures and 42 patients with TossyⅢ acromioclavicular joint dislocation were randomly divided into two groups.Patients of two groups were treated by clavicular hook plate and Kirschner wire,respectively.The operation time,intraoperative blood loss,wound healing time and hospitalization days,prognosis and complications of patients in two groups were compared.Results There were no statistically significant differences in operation time and intraoperative blood loss of the two groups(P>0.05).The wound healing time and hospitalization days of the Clavicular hook plate group were shorter than that of Kirschner wire group(P<0.05).The rate of good effect of shoulder joint function improving and effect of internal fixation of the two groups were high.The incidence rate of complications of Clavicular hook plate group was obviously lower than that of the Kirschner wire group(P<0.05).Conclusion Clavicular hook plate can get good effect in the treatment of distal clavicle fracture and dislocation of the shoulder joint.