The invention relates to the field of information construction, in particular to a big data information center network architecture method, which comprises the following steps of: establishing a physical isolation service network, a storage network and an out-of-band management network; establishing a multi-network card server for communication between a service network and the storage network; performing unified operation and maintenance and management on the service network and the storage network through out-of-band management, wherein the service network is divided into a traditional network service network comprising a traditional data center intranet and a traditional data center extranet, and a cloud platform network, the traditional data center intranet is used for butt-jointing internal data, the traditional data center extranet is butt-jointing an operator, and the cloud platform network is used for butt-jointing a data communication backbone network or an operator network according to future business service objects. The stability and effectiveness of the data center network are ensured, and the influence of burst storage flow on service flow can be solved.