Abstract: Accounting for the diversity and complexity of future network applications, an evaluation method for future network quality of service(QoS) was proposed based on the existing QoS metrics of transport layer and the network layer. And then a multi-layer federation evaluation system was created. On this basis, the QoS of each layer was assessed on the use of improved analytical hierarchy process. Furthermore, D-S evidence theory was used for the reduction of the overall evaluation system proposed. Finally, the experiments showed that the evaluation method was effective and feasible.