A multi-connectivity communication method, comprising: receiving, by a terminal, via different logical channels of an air interface between a secondary base station and the terminal, radio resource control, RRC messages from the secondary base station, wherein the RRC messages comprise a first RRC message generated by an RRC entity of a master base station and a second RRC message generated by an RRC entity of the secondary base station, wherein the first RRC message is received using a first signaling radio bearer, SRB, the second RRC message is received using a second SRB, and the first SRB and the second SRB correspond to the different logical channels respectively; receiving, by the terminal, a correspondence between configuration information of the first SRB and the RRC entity of the master base station from the secondary base station via an interface between the secondary base station and the master base station and an air interface between the master base station and the terminal; receiving, by the terminal, a correspondence between configuration information of the second SRB and the RRC entity of the secondary base station from the secondary base station via the air interface between the secondary base station and the terminal; identifying, by the terminal, based on the different logical channels, a target RRC entity that generates the first RRC message or the second RRC message, wherein the target RRC entity is the RRC entity of the master base station or the RRC entity of the secondary base station, and the master base station and the secondary base station use different radio access technologies. receiving, by a terminal, via different logical channels of an air interface between a secondary base station and the terminal, radio resource control, RRC messages from the secondary base station, wherein the RRC messages comprise a first RRC message generated by an RRC entity of a master base station and a second RRC message generated by an RRC entity of the secondary base station, wherein the first RRC message is received using a first signaling radio bearer, SRB, the second RRC message is received using a second SRB, and the first SRB and the second SRB correspond to the different logical channels respectively; receiving, by the terminal, a correspondence between configuration information of the first SRB and the RRC entity of the master base station from the secondary base station via an interface between the secondary base station and the master base station and an air interface between the master base station and the terminal; receiving, by the terminal, a correspondence between configuration information of the second SRB and the RRC entity of the secondary base station from the secondary base station via the air interface between the secondary base station and the terminal; identifying, by the terminal, based on the different logical channels, a target RRC entity that generates the first RRC message or the second RRC message, wherein the target RRC entity is the RRC entity of the master base station or the RRC entity of the secondary base station, and the master base station and the secondary base station use different radio access technologies.