Purpose: The purposes of the study were to identify level of health literacy and factors influencing health literacy of migrant workers. Methods: Data were collected using a cross sectional correlational design. Participants were 128 migrant workers in Korea. Data were analyzed using descriptive statistics, independent t-test, ANOVA, Scheff$acute{e}$ test, and hierarchical multiple regression with the SPSS 18.0 program. Results: The health literacy level of migrant worker was low and they had difficulty in understanding patient education materials and medical forms. Factors influencing health literacy were residential areas (city or rural), education level, length of stay in Korea, and ability to understand spoken Korean. Regression model accounted for 14.2% of the variance in health literacy. Conclusion: Lower levels of health literacy make it difficult for migrant works to visit medical facilities and perform health behaviors appropriately. Therefore, diverse strategies should be developed by nurses to enhance the health literacy level of migrant workers.