A device for controlling a start of a vehicle by conducting the shifting operation of a transmission mounted on a vehicle by using a gear change actuator, that includes a starting gear change instruction device that instructs a change of a predetermined starting gear position, a brake operation detection switch for detecting the brake operation of the vehicle, and a controller for controlling the gear change actuator based on the detection signals from the starting gear change instruction device and from the brake operation detection switch. When a change for the starting gear position is instructed from the starting gear change instruction device, the controller controls the gear change actuator so as to shift the transmission to the instructed gear position only when the operation of the brake has been detected.