Network traffic control method and device

The embodiment of the invention relates to the technical field of network communication and provides a network traffic control method and device. The network traffic control method and device are used for solving the problem that bandwidth needed by a certain specific application program cannot be guaranteed during traffic control in a local area network in the prior art. The method comprises the steps of determining the application program corresponding to feature information of received data messages according to the first corresponding relation of the feature information of the data messages and the application program, determining the current bandwidth needed by the application program according to the bandwidth occupied by the received data messages of the application program, and distributing bandwidth for the application program according to the priority of the application program, the current needed bandwidth of the application program and the current available bandwidth. The network traffic control method and device enable the data messages of the application program of high priority to be processed in time.