Abstract: A vehicle remote reservation control system capable of switching a vehicle to a starting-disabled state even when communication between a server and a vehicle-mounted device is not stablished is provided. The system includes a server for managing a starting state of a vehicle; and a vehicle-mounted device or a communication module for controlling the starting state of the vehicle based on a control command. The control command includes at least a starting state reservation control command for switching between a starting-disabled state and a starting-enabled state of the vehicle. When the vehicle-mounted device or the communication module receives the control command from the server, if a predetermined condition regarding the starting state reservation control command is satisfied on the basis of vehicle information detected by a vehicle information detecting means, the vehicle-mounted device or the communication module switches the starting state of the vehicle.