The utility model provides a rubber packing ring of vehicle doorn, the concretely relates to auto -parts field, including first rubber packing ring and second rubber packing ring, the surface of firstrubber packing ring is equipped with the lug, the surface of second rubber packing ring is equipped with the recess, the lug of first rubber packing ring with the groove phase of second rubber packing ring matees, just including magnet in the lug of first rubber packing ring, the cladding has iron or nickel in the recess lateral wall of second rubber packing ring. The utility model discloses thegood of car space leakproofness can be effectively ensured, the effect of making an uproar that separates of vehicle is improved.