We consider the economic value of emergency medical facilities. An emergency medical facility affects the medical environments in a community, and thus the social demand on the facility increases as the demand of qualified public health service increases. Regarding the increased demand and the limited resources of fiscal budget, it is important to scientifically evaluate the social benefit of the public investment on emergency medical facilities, as the results of evaluation can help make better budgetary decision on each public investment project of emergency medical facilities. In this paper, we try to estimate the economic value of emergency medical facilities based upon the estimated changes in preventable death rate by the facility and the statistical value of life. We hope the results contribute to improve the budgetary decision making on the emergency medical facility projects, thus the public health policies.