Guide rail for glass of automotive door

The utility model discloses a guide rail for glass of an automotive door, which comprises a guide rail body in an arc-shaped structure. Two square holes are arranged at two ends of the guide rail body respectively, a reinforcing support is arranged at positions of the square holes, two ends of the reinforcing support are fixedly welded to the guide rail body, a protrusion arranged in the middle of the reinforcing support penetrates through the square holes on the guide rail body to be integrally welded with an inner plate of the automotive door. By means of the reinforcing support disposed on the guide rail body, strength of the guide rail for the glass of the automotive door is enhanced. Furthermore, the welding contact area of the reinforcing support welded to the inner plate of the automotive door is small, so that the inner plate of the inner plate of the automotive door and the guide rail body are not easy to deform during welding, and qualified rate of products is further increased.