Abstract: To assess the value of life of risk industry workers，and to provide an important basis for the development of labor casualties payment standard，the thesis assessed risk of the value of life based on willingness of payworkers in the industry，and builded DEA mathematical models. The author designed double border dichotomous questionnaire and investigated the workers of the group of YIMEI，to assess the value of life front-line workers，we obtained the validity of the DEA model according to the survey data. The results show that：the value of life of risk industry workers are normally distributed；under 95% confidence interval，the value of life of risk industries is 386.633 million yuan.

Key words: data envelopment analysis（DEA）, risk industry workers, value of life；mathematical model