Abstract: Land Registry Office is an government institution that engaged in service field. In this sector, the increase of people satisfaction is the most important thing that needs to be maintained. However, the limited service resources make it not comparable to the rate of service request. Therefore, it will cause queue. One of the services in Bogor District Land Registry Office which has a high intensity of service request every day is certificate checking. This study aims to analyze the performance of queue service system of certificate checking and to develop a model of service that is improved and can meet the needs of the service. The development of queue model is done by making a simulation using the software Arena 14.00.00. Arena simulation results were tested by t-test to verify that the simulation model has been represented of certificate checking service in Bogor District Land Registry Office. Analyses of the simulation include the analysis of waiting time and queue length, utility analysis, and bottleneck analysis. From the analysis, there are inefficiencies that result in long waiting periods and a large number of files that have not been processed. the percentage of files that can be completed in every day at the existing condition is only 57.40% of the incoming beam. Scenario improvements were made to cope with the jam on phase experiencing a bottleneck. The improvement scenario can increase number of output to 96.20%, and boost the waiting time to become 0.278 hours from the previous of 1.56 hours.