The invention relates to a disk type permanent-magnet cursor motor. The disk type permanent-magnet cursor motor comprises an external rotor (1), an external rotor yoke part (2), external rotor permanent magnets (3), a stator (4), stator teeth (5) which are arranged at the periphery of the stator (4) and protruded outwards, stator permanent magnets (6), windings (7), stator slots (8), a bearing (9) and a supporting shaft (10), wherein the external rotor (1) is connected with the supporting shaft (10) in a rotatable mode through the bearing (9); the external rotor permanent magnets (3) are embedded into the external rotor yoke part (2) at equal intervals along the circumferential direction; the stator (4) has an open slot stator structure; the stator slots (8) are formed in the stator (4); the windings (7) are arranged in the stator slots (8); and each stator permanent magnet (6) is embedded between the two adjacent stator teeth along the circumferential direction. The reliability and output torque of the disk type permanent-magnet cursor motor are improved.