Objective To explore the requirement of on-site first-aid knowledge of sever hand in workers,and evaluate the corresponding training effect.Methods Through the questionnaire survey in 120 workers,making the sever hand on-site first-aid knowledge courseware,during the one-year training,we sent two teachers to give lectures,provided tools for workers to practice every week.At the end of training,we examined workers through the written and practical examination and made the statistical analysis.Results 97.5％ workers presented training needs,54.2％ workers had mastered sever hand onsite first-aid knowledge compared with that before training.Conclusions Workers have higher rates of accidents,however,there is lack of knowledge of first aid in general,and they have training requirement.We take the form of participative training and give the workers both theoretical and technique training,and this can effectively improve the awareness rate of on-site sever hand first-aid knowledge and technique.