This study aims to evaluate the Occupational Health and Safety Management System (OHSMS) implementation in container terminal operations at the Port of Kaohsiung. A questionnaire survey was used to collect workers’ perceptions of their employing companies，OHSMs implementation. Four factors were identified based on a factor, namely: management support, safety training, safety environment, and health activity. An analysis of variance (ANOVA) was used to examine the relationships among OHSMS dimensions and five performance measurements. The results revealed that all four dimensions significantly affected the performance measurements, and the most important dimension for improving safety performance and increasing employees’ well-being was management support. Therefore, high commitment container terminal operation management has upon OHSMS implementation will not only improve safety behavior, but also reduce accident occurrence and increase employees，job satisfaction.