Objective To study the correlation between different working environment and incidence of fatty liver in staff of one railway company.Methods The research conducted by selecting 6 703 staff of one northern railway company from July to August in 2013 that included eligible medical examination data and questionnaires from one health management center in Shijiazhuang.The study explored state of fatty liver by employing transabdominal sonography

compared the sate between different age groups

and investigated the incidence of fatty liver between different groups of work intensity

work nature and way of production.Results The total incidence of fatty liver occupied 31.4% among 6 703 cases.The rate in men（35.2%）was obviously higher than that in women（7.98%）with statistically significant difference（χ

2

=282.478

P

<

0.01）.The number of patients with mild

moderate and severe fatty liver was 954

866 and 285

occupying the proportion of 45.3%

41.1%

13.5% separately.The results were statistically significant（χ

2

=22.924

46.355

18.047

P

<

0.01）when comparing the incidence of fatty liver between different groups of work intensity

work nature and way of production.Conclusion Different working environment can induce distinct incidence of fatty liver.They strongly correlated with each other.