Service disaster recovery method and system

Provided are a service disaster recovery method and system. The service disaster recovery method comprises: backing up the data of a production database of a service system to a backup database in real time; and when the production database in the service system has failed, the service system resetting from the production database to the backup database. By backing up a production database of a service system to a backup database in real time, and, when the production database has failed and cannot be accessed, automatically resetting same to the backup database and replacing a sub-production database with the backup database to continue providing a service for a user, the abovementioned solution ensures that in the case that the database cannot be accessed, the service continues being used normally in an uninterrupted condition, enhancing the robustness of a service system, and increasing the degree of satisfaction of a client.