Abstract: Objective To investigate the application effect of the non-technical skill mode in the training of instrument nurse in robotic-assisted joint replacement surgery. 
Methods Twenty instrument nurses were randomly divided into the control group (n=10) and the experimental group (n=10). The control group was trained in the traditional mode including professional knowledge, while the experimental group was trained in the non-technical skill mode based on the traditional mode. The non-technical skill mode for instrument nurses was applied before and after the training to observe and score the procedures of the two groups. 
Results After the training, the scores of identifying and understanding information, foreseeability, timely communication of information, collaboration with others, provision and maintenance of standards, and coping with stress were higher in both groups than those before the training, and the scores of identifying and understanding information, foreseeability, decisive behaviour, timely communication of information, collaboration with others, planning and preparation, provision and maintenance of standards, and coping with stress were higher in the experimental group than in the control group (P＜0.05). Physician satisfaction scores and professional identity scores in both groups were higher than those before the training, and physician satisfaction scores and professional identity scores were higher in the experimental group than in the control group (P＜0.05). 
Conclusion The effect of non-technical skill training for instrument nurses involved in robot-assisted joint replacement surgery is significantly better than that of traditional professional knowledge training. 

Key words: arthroplasty, replacement, non-technical skill mode, nurses