Abstract: The present invention provides a roller for transporting glass substrate and a transporting device thereof. Wherein, the roller comprises: a cylindrical body and an outside layer coated on the side of the cylindrical body. The distance between the top and the bottom of the cylindrical body is 100˜120 mm, the cylindrical body is made of MC nylon, and the outside layer is polyurethane coating. In the roller and the transporting device of the transporting glass substrate according to the present invention, the roller is widened, which is made of the material with better buffering performance. When it is used for transporting the glass substrate, the contact area between the roller and the glass substrate will be increased. And the distance between the rollers is decreased, so that the glass substrate will be transported steadily with average stress, and the structural damage of the substrate will be decreased, which avoids the mura problems and improves the level and quality of the glass substrate.