An apparatus and method for measuring signal quality information in a mobile broadcasting network are provided, as well as a system supporting the same. A broadcast server provides a reporting condition for signal quality to a mobile terminal using a control message. The mobile terminal, when it satisfies the reporting condition, transmits a reporting message for signal quality to a management server managing signal qualities. The reporting message includes signal quality measurement results at the current location. In this way, information on the low-signal quality area is automatically collected from the mobile terminal, making it possible to rapidly and easily comprehend the sate of the mobile broadcasting network depending on the collected information.