Abstract: One end of each of coils of a group of phases A, C, and E among coils of phases A, B, C, D, and E which are wound in turn around stator poles of the 5-phase stepping motor is connected to one end of each of coils of another group of phases B and D so that coils of a group of phases A, C, and E are in antiphase with respect to coils of another group of phases B and D. Two or three of the abovesaid five phases are suitably selected to be excited in parallel and further the other two or three phases are excited in parallel so as to be connected in series with the former two or three phases excited in parallel. In this way, the 5-phase stepping motor is driven by selectively exciting the phases and thereby sequentially changing the direction of a resultant vector.