The invention provides a TCP service oriented flow control method and an access network element. The TCP service oriented flow control method comprises the steps of: judging an operating mode of a current TCP service after the completion of bearer establishment corresponding to the TCP service of user equipment UE; if the operating mode of the current TCP service is a low delay operating mode, determining whether uplink feedback information pre-sent by the UE is ACK information according to an HARQ mechanism; and if so, constructing an ACK message to be sent to a core network element, and adding the constructed ACK message to the first place of an uplink submission queue, wherein the uplink submission queue is a queue used for sending messages to the core network element. The TCP service oriented flow control method can realize effectively suppression of data loss and delay jitter caused by emergency, shortens the transmission RTT, and improves the throughput of the TCP service.