Disaster recovery processing method and device of server

The invention discloses a disaster recovery processing method and device for a server. The method comprises the following steps: monitoring and determining whether a main data center server has a paralysis fault or not; for each public network private line merchant, when it is determined that the main data center server has a paralysis fault, sending a disaster recovery processing instruction to a disaster recovery router carried by the public network private line merchant; the disaster recovery router is used for switching the routing relationship of the commercial tenants from a production address to a disaster recovery address; a disaster recovery address corresponding to a production address of a public network private line merchant is stored in the router; carrying out merchant transaction between the public network and private line equipment and a backup data center according to the disaster backup address of the public network and private line merchant; after it is determined that the paralysis fault o