Abstract: Objective To study the effect of enhanced recovery after surgery(ERAS) method on the prevention of complication saftertotal hip arthroplasty(THA). 
Methods Patients who underwent THA from the Third Hosipital of Hebei Medical Univerisity were selected as research subjects. According to the principle of random control, the patients were divided into research group and control group. The research group was given ERAS nursing program, while the control group was given conventional nursing. The visual analogue scale(VAS) pain scores, postoperative complications(deep venous thrombosis, urinary tract infection, falling pneumonia, pressure sores, constipation) and Harris hip function scorewere recorded. The length of hospitalstay, average hospitalization expenses and patient satisfaction were compared. 
Results VAS scores of the two groups decreased over time, and the difference of interaction between groups, time points and time points between groups were statistically significant(P＜0.05). The incidence of complications in the research group was lower than that in the control group, while Harris score was higher than that in the control group, with significant difference(P＜0.05). The length of hospital stay and hospitalization expenses in the research group were less than those in the control group, while the patient satisfaction was higher than that in the control group, suggesting significant difference(P＜0.05). 
Conclusion ERAS can reduce the incidence of postoperative complications, promote recovery of patients after THA, and improve the satisfaction of patients and their families. 

Key words: arthroplasty, replacement, hip, complications, treatment outcome