Objective:To study the effect of integrated fixation and separate fixation in the treatment of femoral shaft fracture with ipsilateral femoral neck fracture.Methods:108 patients with femoral shaft fracture complicated with ipsilateral femoral neck frac-ture were selected as the research subjects.According to the surgical methods of the patients,they were divided into integrated fixation group(n=57)and separate fixation group(n=51).The perioperative related indicators of the two groups were compared.The hip function Harris score and fracture healing time at 1 year after surgery and postoperative complications were counted.Results:The surgi-cal time of patients in separate fixation group was longer than that in integrated fixation group,and the intraoperative blood loss and intr-aoperative fluoroscopy frequency were more than those in integrated fixation group(P＜0.05).There were no statistical differences in the healing time of femoral neck fracture and shaft fracture,the excellent and good rate of Harris score at 1 year after surgery,and the incidence rates of complications such as incomplete fracture union and knee pain or stiffness revealed between the two groups(P＞0.05).The poor rate of postoperative femoral neck deformity or fracture nonunion in patients with preoperative femoral neck displace-ment after integrated fixation was higher than that in patients with separate fixation(P＜0.05).Conclusion:Both integrated fixation and separate fixation in the femoral shaft and ipsilateral femoral neck fracture have good results,but for patients with significant femoral neck displacement before surgery,separate fixation is recommended to reduce the risk of poor femoral union.