Sided-sliding door of light bus

The utility model relates to a light coach side-sliding door, which belongs to the technical field of vehicle component and composes a door frame on the outside of the vehicle body and a sliding door. A guide rail is arranged on the vehicle lateral wall and the sliding door is relevantly provided with a sliding piece, which is sliding connected with the guide rail. The guide rail is composed of upper, middle and lower sliding tracks in parallel. The upper and lower guide rails are respectively positioned at the middle of the vehicle body outside. The sliding pieces can be divided into upper, middle and lower sliding pieces, which are respectively arranged on the inner wall of the sliding door in correspondent with the track. Therein, the upper middle sliding piece is for bearing, and the lower sliding piece for guiding. Outside of the middle guide rail is covered with a guide rail cap. The upper, middle and lower guide rails of the sliding door are arranged on the lateral wall of the vehicle body and the tracks of the guide rails are kept in parallel. The utility model has rational structure, flexible opening, good protection property, and long service life. Meanwhile, when closing, the sliding door and the lateral wall of the vehicle is in the same surface and the aesthetic property of the vehicle body is so improved.