Background and aims: health literacy leads to gain capacities and necessary perception of health information and services to individuals, so that, they can take health decisions. Therefore, this study aimed to determine the workers' Health literacy in one of the Iran Khodro's piece making factory in 2015.

Methods: In this cross-sectional study, 157 workers of Mehrcam Pars Company in 2015 were selected using appropriate stratified random method in each workshop. Then through simple random sampling, subjects were enrolled. Questionnaire was completed by self-reporting through workers. To collect the data, Iranian adult health literacy questionnaire (HELIA) was used. Data were analyzed using the SPSS21 software.

Results: The subjects, in terms of access to health information, 79% had poor access, 56.1% had poor reading skills. In terms of understanding, 77.1% weren’t in a good condition. In the evaluation, on average, half of those hadn’t adequate health literacy level and were not long enough (22.9% and 20.4% respectively). In the use of health information, 61.8% had insufficient levels of health literacy. Understanding and evaluating has a direct effect on the mean score of information.So that, the understanding and evaluating were the appropriate predictive to apply health information.

Conclusion: Overall, the health literacy was inappropriate in individuals. This issue shows the more attention to health literacy in educational and interventional programs. It is necessary for this purpose, it is necessary to design and apply comprehensive program, media, and simple and understandable educational materials.