Objective To analyze the application effect of whole-course multi-disciplinary nutrition model in elderly patients undergoing hip surgery.Methods A total of 90 elderly patients undergoing hip surgery admitted to Wenzhou Central Hospital from October 2021 to December 2023 were selected and divided into control group and study group according to random number table method,with 45 cases in each group.The control group was treated with dietary management model,while the study group was treated with whole-course multi-disciplinary nutrition model.Recovery,nutritional status,quality of life,hip function and satisfaction were compared between two groups.Results The hospital stay and fracture healing time in study group were significantly shorter than those in control group(P<0.05).After intervention,prealbumin(PA),albumin(Alb),hemoglobin(Hb),dimensions scores of 36-item short form health survey(SF-36)and Harris hip scores of patients in two groups were significantly higher than before intervention(P<0.05).PA,Alb,Hb,dimensions scores of SF-36 and Harris hip scores in study group were significantly higher than those in control group(P<0.05).The satisfaction of patients in study group was significantly higher than that in control group(χ2=5.075,P=0.024).Conclusion The application of whole-course multi-disciplinary nutrition model in hip surgery in elderly patients can improve their nutritional status,improve their quality of life,enhance hip function,and facilitate postoperative recovery.