Bearer multiplexing method and bearer multiplexing device

The invention discloses a bearer multiplexing method, which comprises the following steps that: an operation, administration and maintenance (OAM) system of a node A configures mapping rules for the node A; the node A sends the mapping rules of a bearer 1 and a bearer 2 to a node B; the node B receives the mapping rules; and the node A or the node B realizes the multiplexing of the bearer 1 and the bearer 2 through the mapping rules, wherein the node A is a relay node (RN) and the node B is a host base station, or the node B is the RN and the node A is the host base station, the bearer 1 is an evolved packet system (EPS) bearer of user equipment (UE) served by the RN and the bearer 2 is an EPS bearer of the RN, or the bearer 1 is the EPS bearer of the RN and the bearer 2 is the EPS bearer of the UE served by the RN. The invention further discloses a bearer multiplexing device. With the adoption of the bearer multiplexing method and the bearer multiplexing device, the same UE EPS bearer can be multiplexed to the same RN EPS bearer.