The present invention provides a packet retransmission control technique in which the communication performance can be improved in a state that the load of a network is high. The packet retransmission control apparatus includes a priority determining section configured to set a packet kind to each of transmission packets to indicate a kind of the transmission packet, and determine a priority level based on the packet kind to indicate an transmission order of the transmission packets; a packet buffer comprising a plurality of queues respectively assigned with priority levels, and configure to store the transmission packet in one of the plurality of queues which is determined based on the priority level of the transmission packet; and an arbitrating section configured to output the transmission packets from one assigned with the highest priority level of the plurality of queues to a lower layer in order of higher priority level.