[Objective] Meta-analysis was used to evaluate the efficacy of locking plate in the treatment of Neer II distal clavicle fracture and unrepaired coracoclavicular ligament. [Methods] The related literatures of Zhiwang, Wanfang, VIP, SinoMed, Pubmed, Embase, The Cochrane library and Web of science were searched by computer and the data were extracted. Review Manager 5.3 software was used for meta-analysis. [Results] A total of 10 studies were included, including 385 patients, including 191 patients in the unrepaired group and 194 patients in the repair group. Meta-analysis showed that the operation time of the repair group was longer than that of the non-repair group［MD=8.23，95%CI(3.81,12.66),P=0.0003］, the intraoperative blood loss was larger［MD=18.81，95%CI(13.79,23.83),P＜0.001］, the postoperative coracoclavicular distance was smaller［MD=1.06，95%CI(0.41,1.72),P=0.001］, and the Constant-Murley shoulder joint score was higher［MD=7.92，95%CI(3.53,12.30),P=0.0004］. There was no difference in shoulder UCLA score, DASH score, fracture healing time and the incidence of postoperative complications. [Conclusions] Locking plate combined with coracoclavicular ligament repair compared with non-repair treatment of distal clavicle Neer Ⅱ fracture, although the operation time is longer, the intraoperative blood loss is more, but the postoperative coracoclavicular distance is smaller and the Constant-Murley shoulder joint score is better.