This study attempted to review the history of the development of mental health in Taiwan’s workplaces, focusing mainly on the direction of government policies against the backdrop of social context as a reference. This study begins with a brief description of the development history of employee assistance programs and occupational health psychology in the related fields in the United States. Next up, the study segued into the field of mental health in Taiwan’s workplace practice and policy aspects to do a review, the findings, excluding some isolated cases without policy guidance in the early period, can be divided into four periods: labor counseling, the implementation of employee assistance programs, the EAP implementation by the government and multi-oriented occupational health promotion. Based on the development of history, this study provides the future development direction of Taiwan’s occupational mental health field, including professional deepening, cross-disciplinary cooperation and integration, and localization. It’s expected that by taking stock of the historical review in this study, the future direction of mental health in the workplace can be provided for scholars, public sectors, and workers in this regard.