Objective: This study was carried out to adapt the Occupational Health Literacy Among Thai Informal Workers developed by Suthakorn et al. into Turkish and to evaluate its validity and reliability. Material and Methods: In this methodological study, the Turkish version of the scale was applied to 400 people working in organized industrial zones. Data were analyzed using SPSS (22.0) and AMOS (24.0) program in computer environment. Content validity was evaluated by using Davis technique and determining Content Validity Indices. Psychometric and reliability analyzes of the Turkish version of the scale were performed. Results: It was found that the scale showed a four-factor structure consisting of 38 items, as in the original, and the items provided 52.1% of the total variance. As a result of confirmatory factor analysis, the scale’s goodness of fit values were calculated as χ²/df=2.91, Root Mean Square Error of Approximation=0.07, Comparative Fit Index=0.84, Goodness of Fit Index=0.78. In the criterion validity evaluation, it was determined that there was a significant relationship between the scale and the Occupational Health and Safety Practices Performance Evaluation Scale (r=0.40, p<0.001). The Cronbach alpha value of the scale was found to have a high reliability of 0.93. It was determined that the scale was suitable in terms of conver-gent validity and also had discriminant validity. In the analyzes made, it was determined that the scale items were distinctive and valid. Conclusion: The Turkish version of the Occupational Health Literacy Scale can be used in a valid and reliable way to determine the occupational health literacy levels of the employees.