The invention relates to a motor, a household appliance, a gardening tool and a vehicle. The motor comprises a rotor core, the rotor core comprises a rotor yoke part and a plurality of rotor tooth parts, the plurality of rotor tooth parts are uniformly connected to the outer side of the rotor yoke part along the circumferential direction, the end surface, far away from the rotor yoke part, of each rotor tooth part is a first cambered surface, the center of the first cambered surface is a first center of circle, and the center of the first cambered surface is a second center of circle; the tracks of the first circle centers of the plurality of rotor tooth parts form a circle with the center of the rotor core as the circle center; the stator iron core is arranged outside the rotor iron core in a sleeving mode, the stator iron core comprises stator teeth, pole shoe parts are formed at the ends, close to the rotor iron core, of the stator teeth, and the end faces, close to the rotor iron core, of the pole shoe parts are second cambered surfaces protruding towards the rotor iron core. The household appliance, the gardening tool or the vehicle comprises the motor. The vibration noise of the motor can be reduced.