The invention discloses a database single-node exception recovery system and method. The database single-node exception recovery system comprises an index acquisition module which is used for acquiring each node index of the database, performing difference calculation and aggregation processing on the node indexes, and importing the processed node indexes into a connection pool of the database, and an index monitoring module which is used for monitoring the node indexes imported into the database connection pool, checking a request queue in the node index, when it is confirmed that backlog exists in the request queue, checking a storage and management server corresponding to the request queue, determining request conditions of all Region units on the storage and management server, and if the request conditions meet preset conditions, migrating the Region units on the storage and management server. According to the embodiment of the invention, the exception of the database node can be automatically processed, and the stability of the database cluster is improved by automatically recovering the exception of the database node.