Embodiments of the present invention provide a service provisioning system and method, a mobile edge application server and support node. The system includes: at least one mobile edge application server (MEAS) and at least one mobile edge application server support function (MEAS-SF), where the MEAS is deployed at an access network side; and the MEAS-SF is deployed at a core network side, connected to one or more MEAS. In the service provisioning system provided in the embodiment, services that are provided by an SP are deployed in the MEAS. When the MEAS can provide the user equipment with a service requested in a service request, the MEAS directly and locally generates service data corresponding to the service request. Therefore, the user equipment directly obtains required service data from an RAN side, which avoids data congestion between an RAN and a CN and saves network resources.