Method and system for classifying local area network http application services

The invention relates to a method and a system for classifying local area network http application services. The invention provides a system for classifying network message application services. The system comprises a message capturer, a protocol analyzer and a message character filter, which are connected one by one, wherein the message capturer is arranged for capturing a network message; the protocol analyzer is arranged for analyzing a protocol for the captured network message, taking a corresponding field message and supplying the network message and the field message to the message character filter; the message character filter is arranged for matching the field message with a preset application service character message so as to classify the network message according to a matching result. The method and the system of the invention can accurately classify the network message.