Conclusion: Over the two years surveyed labor environment, public health examination, examination for detection of occupational diseases (2009 - 2010) working environment has not improved, in particular factors that noise and dust, the sample rate exceeds occupational standards compared to the sample does not decrease, the number of people with occupational deafness and silicosis disease tends to increase in enterprises in the industrial zone in Dong Nai province, which given the measures and proposals to make.