A method for transferring a session request including: acquiring a routing table related to a session during establishing the session; the routing table recording the address information of an AAA proxy server related to the session; transferring a session request of the session according to the address information of the AAA servers recorded in the routing table upon receiving the session request of the session. A system and a plurality of apparatuses for transferring a session request are provided as well. By the solution, all session requests of the session may be ensured to be transferred via the same route.