The present study was subject to some limitations. For example, although the KWCS, which was a cross-sectional study, demonstrated an association between supervisors’ behavior and workers’ stress, the inference of causality in this relationship was limited. In addition, psychosocial stress, outcome variables, and independent variables were measured via a self-report questionnaire in the current study, which could have led to response biases. Moreover, as work-related stress was not measured using a standardized instrument, such as the Korean Occupational Stress Scale, in the present study, the precision of the measurement of this variable was limited. Despite these limitations, the present study clarified the association between supervisors’ behavior and job stress in workers, using nationally representative data collected via the 2014 KWCS.