Objective:To investigate the effect of nursing model based on"Watson's theory of care"on kinesophobia,pain and functional recovery in patients undergoing total knee arthroplasty(TKA).Methods:A total of 100 patients treated with TKA were se-lected as study objects and they were divided into control group(n=50)and study group(n=50)according to different nursing mod-el.The control group adopted the routine nursing mode,and the research group adopted the nursing mode based on the"Watson's theory of care"on the basis of the control group.Postoperative pain,fear degree,knee function and daily living ability of the two groups were compared,and occurrence of complications 5 days after surgery were recorded.Results:The visual analogue scale(VAS)of the study group was lower than that of the control group at 12 h,1,3 and 5 d after surgery(P＜0.05).The score of Tampa kinetophobiascale(TSK)in the study group was lower than that in the control group at 1,3 and 5 d after surgery(P＜0.05),and the incidence of kine-tophobia in the study group was lower than that in the control group at 5 d after surgery(4.00％vs.18.00％,P＜0.05).At 3 and 5 d after surgery,the knee joint score(HSS)of the Hospital for Special Surgery in the study group was higher than that of the control group(P＜0.05).Activity of daily living(ADL)scores in the study group were higher than those in the control group at 3 and 5 d af-ter surgery(P＜0.05).The incidence of complications 5 d after operation in the study group was lower than that in the control group(16.00％vs.36.00％,P＜0.05).Conclusion:The nursing mode based on"Watson's theory of care"is beneficial to alleviate the postoperative pain of TKA patients,promote the recovery of knee function and daily living ability,and reduce the risk of postoperative kinesophobia and complications.