Abstract: Objective To compare and analyze the clinical effect of clavicular hook plate fixation and loop plate internal fixation in the treatment of acromioclavicular dislocation. Methods Total 84 patients with acromioclavicular joint dislocation were selected from July, 2015 to February, 2017 as the research object. The patients were randomly divided into A group (42 cases) and B group (42 cases). The A group was treated with loop plate internal fixation, and the B group was treated with clavicular hook plate fixation. The bleeding volume, operative time, postoperative hospitalization time, shoulder joint function and pain degree in two groups were observed. The Constant-Murley score and postoperative complications in 3 months, 6 months before and after operation were observed. Results There was no significant difference in intraoperative blood loss, operation time and postoperative hospital stay between the two groups (P>0.05); Shoulder function and pain degree showed that there was no significant difference between the two groups before operation (P>0.05). After 3 months and 6 months, the Constant-Murley of group A was significantly higher than that of group B, and the score of VAS was significantly lower than that of group B, the difference was statistically significant (P<0.05); The incidence of postoperative complications in group A was 7.14%, which was significantly lower than that in group B, and the difference was statistically significant (P<0.05). Conclusion In the treatment of acromioclavicular joint dislocation, with plate internal fixation, shoulder joint function recovery of patients and pain are better than the clavicular hook plate fixation, and fixation of the safety plate in a higher, more worthy of promotion.