(At that time, the QoS system structure and related technologies of the Internet could not adapt to the further development of the new generation network. The article focuses on the future development direction of the Internet, from the network QoS system structure, real-time QoS guarantee, QoS control of integrated QoS and QoS function evaluation. The challenges and solutions faced by the new generation of network QoS are discussed in terms of theory and other aspects, and the development methods of the new generation of network QoS are discussed.)