In a connector terminal connected to an electric wire in which a conductor is covered with an outer cover, the terminal includes a barrel portion that is exposed from the outer cover and is to be crimped to the conductor coated with a covering, and an electrical connection portion electrically connected to a mating terminal, wherein a trench or a projection that is provided along a direction perpendicular to an axis of the electric wire are formed in an inner surface of the barrel portion, and a depth of the trench or a projecting dimension of the projection is made smaller than a covering thickness of the covering.