The twopole parallelly magnetized solid cylindrical permanent magnet synchronous motor (SCPMSM) was taken as the study object and the effects of rotor eccentricity on spatial and frequency characteristics of airgap magnetic field were analyzed. Introducing the airgap permeance correction factors of rotor static and dynamic eccentricities, the mathematical models of the airgap magnetic fields in the SCPMSM with rotor eccentricity were developed. The spatial and frequency characteristics of airgap magnetic fields under both static and dynamic rotor eccentricity modes in noload and load cases were analyzed. Taking a 2pole 12slot parallelly magnetised SCPMSM as example, the characteristics of rotor eccentric airgap magnetic fields were analyzed by the finite element method, which verified the correctness of the theoretical analysis.