Side coaming assembly and vehicle

The utility model discloses a side panel assembly and a vehicle. The side coaming assembly comprises a coaming body and a doorsill beam, and the doorsill beam is installed on the coaming body and located on the lower portion of the coaming body. The coaming body comprises a side wall inner plate and a side wall reinforcing plate which are arranged in an attached mode, one of the side wall inner plate and the side wall reinforcing plate is of a closed door ring structure, the other one of the side wall inner plate and the side wall reinforcing plate is of a semi-door ring structure with an opening or a closed door ring structure, and the closed door ring structure is formed after the side wall inner plate and the side wall reinforcing plate are combined. An opening of the half door ring structure faces the doorsill beam; the side wall inner plate and the side wall reinforcing plate are both of an integrated structure. The number of components of the side coaming assembly is greatly reduced, and the side coamin