To provide a method for collecting information resulting from broadcast distribution in a satellite communication system by which a distribution station can efficiently obtain an ordinal number of partial information required for retransmission to entire distributed stations, independently of the number of the distributed stations so as to reduce the time required for information distribution.

The distribution station distributes distribution information, that is divided into a plurality of sets of partial information in the case of distribution, the distributed stations receive distribution information, synchronously transmit a NACK signal with a time slot in the distribution information, multiplex the NACK signal partially onto the distribution information, by colliding the NACK signal with the distribution information on the time base, so as to generate the time slot unable to be received by the distribution station, and the distribution station acquires a list of ordinal numbers of the partial information denoting that at least one or more stations in all the distributed stations fail to receive information from the time slot, from which the distribution station cannot receive information.