To achieve high-speed rising on starting in a motor-control method and device.

A level B that is lower than an overcurrent value (level A) of an overcurrent protection function and a level C that is lower than the level B are set, a motor current that is detected by a current sensor 7 and a current detection circuit 8 is compared with the level B by a first comparison circuit 10, the state is retained by a first logic circuit 13, when the motor current exceeds the level B or the detected motor current is compared with the level B by a second comparison circuit 11, and the state is retained by the first logic circuit 13, when the motor current becomes equal to or lower than the level C. A control circuit 15 of a motor 4 breaks current flowing to the motor 4, according to the retention information of the first logic circuit 13 or cancels the breaking of the current, and maintains a motor current at a high level ranging from the level B to the level C in starting.