The optical drive rotation of the magnetically levitating pyrolytic graphite sheet provides a way to convert solar energy into kinetic energy, and the study on this phenomenon is of great significance in the field of energy conversion. The equivalent magnetic charge method is used to calculate the spatial distribution of the magnetic field of the permanent magnet. The force, torque, and potential energy of the pyrolytic graphite sheet are calculated. Based on this, the optical drive rotation phenomenon of the circular pyrolytic graphite on the nested cylindrical permanent magnet is calculated, analyzed, and explained. It is found that when the nested cylindrical permanent magnet is strictly coaxial, the circular pyrolytic graphite sheet will not rotate under laser irradiation. However, the nested permanent magnet will inevitably produce a certain amount of eccentricity during assembly, resulting in asymmetric magnetic field distribution, which makes the torque of the circular pyrolytic graphite sheet change periodically with the laser irradiation point, so the optical drive rotation phenomenon occurs.