The present invention allows the friction of the belt with the slide table to be abated as well as restrains dusts from occurring.The conveyor belt 10 for carrying a transported article mounted on the surface thereof comprises: a belt main body 1; and a lower surface layer 3 to cover the lower surface of the belt main body 1, in which the lower surface layer 3 is provided with a projective surface 4b in which a plurality of projections 4 whose peak portions 4a are formed into a curved surface shape.