The present invention relates to a location-based service technology for a mobile device. The present invention relates to a GPS control system of a mobile device for a location-based service and an operating method therefor, which, even in a state where a GPS receiving unit included in a mobile device for a location-based service is disabled, activates the GPS receiving unit to thus provide the mobile location-based service, and then brings the GPS receiving unit to the original state thereof, and also, when the mobile device moves at a predetermined speed or higher, provides the mobile location-based service by detecting the movement of the mobile device and activating the GPS receiving unit.