The present invention is provided with a configuration such that a motor control constant to be set in a motor control device is automatically calculated on the basis of: a target response time constant obtained from a target response time constant input unit; a waveform parameter obtained from a waveform parameter input unit; a normalized time constant obtained from a normalized time constant calculation unit; and a motor load inertia obtained from a motor load inertia input unit, thereby providing a motor control constant calculation device capable of automatically calculating and determining an appropriate motor control constant for obtaining desired response characteristics without causing variations or increasing man-hours due to the ability differences of users.
