The utility model discloses a high-voltage motor stator punching sheet maintenance and cleaning device, and mainly relates to the field of high-voltage motor stator maintenance. The stator punching groove cleaning device comprises an annular disc, a plurality of columnar bases are arranged on the circumferential surface of the annular disc in an annular array mode, a plurality of groove brushes are detachably arranged on the columnar bases, the number of the columnar bases is equal to that of stator punching grooves, and the size and the shape of the groove brushes are matched with those of the stator punching grooves. A plurality of connecting frames are arranged on the annular disc in an annular array mode, and column casings are arranged at the ends, away from the annular disc, of the connecting frames. The stator notching machine has the beneficial effects that the stator notching machine can complete the poking and cleaning work of all stator notching at one time, and if the stator notching machine is not safe to clean at one time, the stator notching machine can clean and check again to see whether blockages are pushed out or not; generally, the stabbing and cleaning work ofthe stator punching groove can be completed by at most three times of cleaning work, so that the whole cleaning process is more efficient.