Objective To investigate the effect of closed reduction and small incision locking plate internal fixation on clavicle fracture.Methods The 99 patients with clavicular fractures were divided into group A(treated with closed reduction small incision locking plate internal fixation,51 cases)and group B(treated with open reduction locking plate internal fixation,48 cases).The length of incisions,intraoperative bleeding volume,surgical time,hospitalization time,pain VAS at 1 month postoperatively,incidence rate of postoperative complications,healing time and shoulder joint range of motion were compared between the two groups.Results All patients were followed up for 7~12 months.Both groups of fractures were functionally reduced.Group A was better than group B in the following terms of incision length,intraoperative bleeding volume,surgical time,hospital stay,and pain VAS at 1 month after surgery(P<0.05).The incidence rate of postoperative complications in group A was lower than that in group B(P<0.05).There were no statistical differences in fracture healing time and shoulder joint range of motion at the last follow-up between two groups(P>0.05).Conclusions Closed reduction and small incision locking plate internal fixation for the treatment of clavicle fractures have the advantages of less trauma,short surgical time,mild postoperative pain for patients,and minimal interference with blood flow at the fracture site,which can achieve ideal fixation requirements with less trauma.