A magnetic head position control method is provided to control a magnetic head to follow the track on a DTM (discrete-track magnetic) disk by accurately detecting the eccentricity compensation amount through a simple process. An angle detection unit detects .theta.1 at which the relative displacement between the magnetic head and the tracks on the DTM (discrete-track magnetic) disk has a peak with no vibration data added. A vibration data calculation unit calculates first vibration data with first vibration amplitude, so that the displacement has a peak at .theta.2 displaced from .theta.1 by a predetermined value. The angle detection unit detects .theta.3 at which the relative displacement has a peak with the first vibration data added. A compensation data calculation unit calculates compensation data for the eccentricity of the tracks, from the detected angles .theta.1, .theta.3, the first vibration amplitude, and .theta.2. The position of the magnetic head is compensated according to the correction data.