The HMLS cord with high strength, high elastic modulus and low shrinkage is used as the skeleton material, and the common V-belt is made of high strength, anti-bending and anti-aging neoprene adhesive material and flexible polyester cotton cloth. Through the connection layer, a number of ordinary V-belts are connected as a whole to eliminate the problems of vibration, tapping, and turning of a single V-belt in operation, so that each V-belt is evenly stressed during operation, and the bearing load and service life of the V-belt are increased.