Fault diagnosis method and system for computer network

The invention relates to the technical field of computer networks, and particularly discloses a fault diagnosis method and system for a computer network. The method comprises the following steps: collecting and acquiring network fault data through fault monitoring and judgment of a computer network; carrying out diagnosis and processing, and generating an auxiliary processing signal when the network fault cannot be directly processed; sending network fault data to a plurality of other computers according to the auxiliary processing signal, and receiving a plurality of pieces of fault feedback information; according to the multiple pieces of fault feedback information, when fault diagnosis processing cannot be completed, auxiliary computers are screened; and establishing network sharing connection with the auxiliary computer, and performing big data fault diagnosis analysis. According to the network fault diagnosis method, direct diagnosis processing, auxiliary diagnosis processing and network sharing diagnosi