A LACP negotiation processing method is implemented by relay node that is located between a first node and a second node. A relay node receives a LACP packet sent by the first node and a LACP packet sent by the second node. The relay node determines first link information between the relay node and a first node according to the LACP packet sent by the first node, and determines second link information between the relay node and a second node according to the LACP packet sent by the second node; then establishes a correspondence between the first link information and the second link information. The relay node forwards the LACP packet sent by the first node to the second node according to the correspondence, and forwards the LACP packet sent by the first node to the second node according to the correspondence.