To avoid useless electric power consumption by generating stopping maintaining braking force by a braking force generating means instead of demand braking force when the demand braking force according to a brake pedaling quantity is larger than the stopping maintaining braking force required for maintaining a stopping state in the stopping state.

This motor-driven brake device is provided with a pedaling force sensor 11 for detecting pedaling force of brake a vehicle speed sensor 12 for detecting a vehicle speed, an inclination sensor 13 for detecting an inclination of a vehicle and a vehicle weight sensor 14 for detecting vehicle weight to output detecting signals of the sensors to a controller 20. At stopping time, a stopping maintaining motor current capable of generating a braking force required for maintaining a vehicle in a stopping state is detected, and when the stopping maintaining motor current is smaller than a motor current capable of the generating braking force based on a pedaling quantity of the brake motors 5FL to 5RR are driven according to the stopping maintaining motor current. Thus, electric power consumption can be reduced while maintaining the stopping state.