A technology is disclosed that provides an aggregation control method, an aggregate node, and a deaggregate node that can quickly and efficiently manage aggregation. Through the technology, a deaggregate node 113 transitions itself to a mode performing a release process for a QoS path within an area between the aggregate node and the deaggregate node, based on a processing message from the aggregate node before movement. The aggregate node transmits an establishment request message for establishing a new QoS path after movement to communication partner nodes 141 to 145. When a relay node itself is a crossover node based on the establishment request message, the relay node transmits a release request message requesting release of the QoS path within the area to the deaggregate node. The deaggregate node releases the QoS path within the area when at least one release request message is received.