T The Jabodetabek Commuter Train is a means of public transportation that connects the Jakarta, Bogor, Depok, Tangerang and Bekasi areas. The absence of a passenger movement map will make it difficult for PT KAI Commuter Jabodetabek to determine the number of rail facilities that need to be provided. Based on these problems, the objectives of this research are 1) to design a simulation model for the movement of passengers on the Jabodetabek Commuter Train for the Jakarta-Bogor route, 2) determine the need for the KRL fleet according to the number of passengers during peak hours. The software used to create the simulation model is Promodel. The number of fleets is determined by measuring the capacity of the trains based on the load factor. Tukey test results are used to classify data. Based on the load factor calculation on the Simulation Model of Passenger Movement of the Jakarta-Bogor train, it is known that the model I at 05.41-06.40 has a load factor of 4.86%, the 2-hour model 10.41-11.40 has a load factor of 40.91%, the 3-hour model is 13.41- 14.40 has a load factor of 84.76%, and the 4 hour model from 17.41-18.40 has a load factor of 185.17%. Model IV has the largest load factor value so that it becomes the focus of this research. The proposed model scenario in this study uses a load factor as an evaluation indicator in determining the number of trains during peak hours. The proposed model scenario chosen is Scenario 3 with the addition of 1 train fleet so that it becomes 6 trips, each train consisting of 10 series of carriages. The results of the proposed model scenario obtained a load factor of 126.04% so that there was a decrease in the load factor of 59.13% with the number of passengers transported to 19,057 passengers.