In order to solve the problem of uneven tension of the elastic belts on both sides in chainless feeding system,a double-motor tensioning scheme is designed.The traditional PID coupled controller is optimized by combining the fuzzy control method with the radial basis neural network control algorithmin so as to improve the speed synchronization performance of the two motors.The simulation test shows that the scheme can significantly improve the synchronous performance of dual motors,and has reference value for the upgrading and transformation of existing equipment.