To provide a service providing system capable of providing network information flexibly in response to a request from a server provided by a third party so as to provide services using various information, the service providing system includes an information collection unit (10) that collects node holding information held by each node device in a mobile communication network when a service information acquisition request needed for providing a service is transmitted from a service providing server (50) located in an external communication network, an information generation unit (20) that generates mobile communication network information based on the node holding information collected from each of node devices (41) to (43), and a communication unit (30) that transmits the mobile communication network information to the service providing server (50).