Network device data processing method and system

The invention discloses a network device data processing method and system, which can transparently and automatically optimize network load under the condition of no need of matching of other algorithms through automatic detection, caching and advanced response. According to the method, the problem of a large amount of repeated data transmission in the current network can be optimized, extra special hardware expenditure is avoided, and a complex load balancing algorithm is not needed. Moreover, the method does not need the software algorithm cooperation of the server and the client, does not need a regulation and control center like a CDN, does not need to manually configure a data mirror image, is completed on network device, and is transparent to the server and the client. According to the method, the data flow and the request flow which can be detected can be automatically cached, repeated data requests can be automatically accelerated through caching, and all other flows can be forwarded like a normal swi