Objectives: We performed cost-benefit analysis to investigate the benefit of companies dispensary. Methods: We measured the cost and benefit of running a factory dispensary. This study focused on a factory with well arranged professional health-care staff. The study was carried out during 1995-1997. All the past values of cost and benefit were converted into present value. We used net benefit and cost/benefit ratio as determinants. Results: The net benefit of the object factory dispensary was -73,000,000 Won, and cost/benefit ratio was about 0.65. This result showed no profitability. Conclusion: There would be limitation of generalization because this study included only one factory dispensary. As we did not consider many indirect benefits....