Stream mapping processing method and device

The invention provides a stream mapping processing method and device, wherein the method comprises: obtaining, by an OFLS, a stream mapping strategy corresponding to the OFLS, wherein the flow mapping strategy is used to represent a condition that a message flowing through the OFLS switch shall satisfy; and transmitting, by the OFLS, the stream mapping strategy to an OpenFlow controller. The method of the invention solves technical problems that in the related technology, s message stream cannot be mapped to a specific OFLS in the event that the OFCS virtualizes a plurality of OFLSs, and two OFLSs cannot be linked. The method of the invention implements a mapping mechanism between message stream and a specific OFLS and implements a precise control of an OF network forwarding path by an OF controller.