The present invention discloses recovery processing method, system and apparatus of aggregation sublink, which includes defining two statuses of discard and forwarding in sending direction and receiving direction separately for every terminal port in up state; when the first apparatus detects the first terminal port of aggregation sublink on the apparatus changing into up state, setting the state of the first terminal port in sending direction and receiving direction as discard, adding the first terminal port into aggregation group without sharing flow, and sending terminal port state query message to the second apparatus; the second apparatus receiving the terminal port state query message, if the state of the second terminal port in receive direction of the aggregation sublink on the second apparatus is forwarding, then returning a response message to the first apparatus; the first receiving the response message and setting the state of the first terminal port in sending direction as forwarding and allowing the first terminal port to share flow of the aggregation group. The invention can eliminating the package losing phenomenon in aggregation sublink recovery procedure.