A connection terminal comprises a receptacle part, a crimping part, and a connection part connected between the receptacle part and the crimping part. The crimping part includes a conductor crimping part adapted to be crimped on a conductor of a wire and an outer layer crimping part adapted to be crimped on an outer layer of the wire. The conductor crimping part includes a first conductor crimping part and a second conductor crimping part which are spaced from each other by an interval in a lateral direction perpendicular to the longitudinal direction. The receptacle part includes an elastic latch adapted to lock a plug inserted into the receptacle part and located at a rear end of the receptacle part close to the crimping part. The elastic latch is positioned between the first conductor crimping part and the second conductor crimping part in the lateral direction.