To provide a composite belt free to be given with uniformly distributed tensile force to each of wadding and having high tensile force.

The composite belt includes a resin layer 8, a core body layer 6 made of woven cloth and an adhesive layer 7 to adhere the core body layer and the resin layer to each other. The woven cloth is formed of a large amount of the warp 11 extending in parallel in the longitudinal direction of the belt, a large amount of the weft 21a, 21b extending in parallel roughly in the vertical direction to the warp on both sides of a row of the warp and leno woven yarn 34-36 to connect the warp, the warp 11 includes the wadding of high strength, a material of the wadding is polyester, Alamide or PBO, a material of the leno woven yarn is polyester and a material of the weft is polyester.