The invention discloses a permanent magnet synchronous motor rotor structure, which belongs to the technical field of motor body design. The rotor structure comprises two claw pole iron cores, namely an upper iron core and a lower iron core, neodymium iron boron magnet bodies, axial magnetization cylindrical ferrite magnet bodies and auxiliary ferrite magnet bodies. The upper iron core and the lower iron core are in location deviation, and are in staggered assembly. The neodymium iron boron magnet bodies and the auxiliary ferrite magnet bodies are embedded in the middle. The axial magnetization cylindrical ferrite magnet bodies are placed between the upper iron core and the lower iron core. The auxiliary ferrite magnet bodies are distributed around the axial magnetization cylindrical ferrite magnet bodies. The neodymium iron boron magnet bodies are embedded between adjacent auxiliary ferrite magnet bodies. The neodymium iron boron magnet bodies are alternate up and down around the axial magnetization cylindrical ferrite magnet bodies. According to the invention, the number of permanent magnets can be reduced; the cost is reduced; and the motor performance is improved.