The invention discloses a permanent magnet ring stator cylindrical linear switch reluctance motor which comprises a rotor cylinder and a stator cylinder. The rotor cylinder comprises a rotor magnet guide ring and a non-magnet-guide rotor sleeve, the rotor guide magnet ring is fixed on the non-magnet-guide rotor sleeve or is coaxially spliced with the non-magnet-guide rotor sleeve to form the rotor cylinder . The stator cylinder comprises a stator iron core which is once formed or is provided with a plurality of parts which are spliced in the axial direction. The stator iron core is provided with rotor teeth, an annular stator groove and a rotor yoke part. According to the permanent magnet ring stator cylindrical linear switch reluctance motor, the permanent magnet ring and a stator coil are used for together providing exciting flux, the useful flux utilization rate is improved, a rotor yoke part is omitted, the amount of the used materials of the motor iron core is lowered, the utilization rate of the iron core materials is improved, only one set of coil is placed in the annular stator groove, phase insulation is omitted, the manufacturing process is simplified, the groove utilization rate is improved, and the advantages of being high in propulsion density, simple and reliable in structure and the like are achieved.