There is provided a monitoring apparatus that can reduce the processing load when a plurality of such monitoring apparatuses are centrally managed. The monitoring apparatus is capable of communicating with a management apparatus that centrally manages a plurality of monitoring apparatuses. The monitoring apparatus manages maintenance information relating to a plurality of peripheral apparatuses, including at least operation information. The maintenance information relating to the peripheral apparatuses is managed. Confirmation information including identification information identifying the monitoring apparatus, and the managed maintenance information is periodically transmitted. The management apparatus generates monitoring object management information based on a history of transmissions of the transmitted confirmation information.