【Abstract】 Objective To investigate the effect of clavicular and rib internal fixation surgery on shoulder joint function in patients with clavicle and rib fracture. Methods 79 patients of clavicular fracture with rib fracture were retrospectively analyzed. 23 cases were treated with internal fixation of clavicle and rib (IFCR), and 56 cases were treated with onerow clavicular internal fixation (CIF). ConstantMurley scores and visual analogue scoring (VAS) scores at different time before and after operation were observed. The preoperative and postoperative activities, expectoration and drug analgesia were analyzed. The pulmonary complication rate, the pleural effusion rate, wound healing and hospitalization time were compared. Results ConstantMurley scores of IFCR was higher than that of CIF. The difference was statistically significant at the 1th day and the 7th day (P＜0.05). IFCR′s VAS scores was lower than CIF. The difference was statistically significant at the 1th day, the 7th day and the 14th day(P＜0.05). The proportion of sitting and getting out of bed of IFCR were higher than that of CIF (P＜0.05). The coughphlegm difficulty rate, pulmonary infection/manifestation rate and drug analgesia rate of IFCR were lower than that of CIF (P＜0.05). The average hospitalization time of IFCR was shorter than that of CIF (P＜0.05). Conclusion The treatment of IFCR can promote the recovery of shoulder function and multiple injuries, it can be selected according to the specific injury.