Improving the quality of public services is one of the most important issues. This happens because on the one hand the demands of the community for service quality are getting bigger while the practice of service providers does not experience significant changes. One of the government’s efforts to improve service delivery is to implement a One Stop Service that is expected to be able to cut the time and costs needed to arrange permits. The purpose of this study was to find out the Application of One Top Service in Increasing Service Quality at the Investment Office, One Door Integrated Service in Banggai Regency by using seven service indicators by Boediono. The results of this study indicate that the Application of One Top Service in Increasing Service Quality at the Investment Office, the One Stop Integrated Service in Banggai Regency is very good.

Keywords : One Top Service, Service Quality.