The invention discloses a motor and a water pump provided with the same. The motor comprises a rotor and a stator, and is characterized in that the stator is arranged outside the rotor, the stator comprises a stator yoke portion and a plurality of stator teeth, the stator yoke portion is of an annular structure which is formed by bending a plurality of bar-shaped yoke portion punching sheets superimposed along the axial direction, the plurality of stator teeth are arranged at intervals along the circumferential direction of the stator yoke portion, the stator teeth are wound with coils, the stator teeth are formed by superimposing a plurality of tooth portion punching sheets along the circumferential direction of the stator yoke portion, the superimposing direction of the plurality of yoke portion punching sheets is perpendicular to the superimposing direction of the plurality of tooth portion punching sheets, one end of each bar-shaped yoke portion punching sheet is provided with a protruding portion, and the other end is provided with a sinking portion matched with the corresponding protruding portion. According to the motor disclosed by the invention, the annular stator yoke portion is formed by bending a plurality of yoke portion punching sheets superimposed along the axial direction, so that the machining process of the stator yoke portion is simplified, the stator yoke portion is enabled to be formed quickly, and the production efficiency of the stator yoke portion is improved. In addition, materials of the stator yoke portion are saved, and the material cost is reduced.