Traditional IP network is designed for data business, but rather to provide data transmission services, it does not have the ability to regulate the use of network resources. In order to distribute the business flow in the existing network topology reasonably, to optimize the the use of network resources and resolve the problem of imbalance in the use of network resources, the model and target of traffic engineering based on differentiated services are presented firstly,and single level traffic scheduling is deduced,and the shared structure and traffic shaping policy of multilink and levelbased scheduling are designed.The simulation results show that this method can improve the performance of traffic congestion control, is more responsive, more stable and fair, and can adapt to network heterogeneity better.