A connector terminal comprising: a circuit-board connection portion that is connected to a circuit board; a terminal portion that contacts a terminal surface (2a1) of a mating connector; and a base end portion that supports an end of the terminal portion, wherein the terminal portion includes a front terminal and a rear terminal, the front terminal including an elastic portion and a front contact-point portion, the elastic portion of the front terminal extending in a cantilever manner from the base end portion in a fitting direction in which a connector is fitted to a mating connector, the front contact-point portion being supported at an end of the elastic portion of the front terminal and wiping off foreign material that is adhered to the terminal surface (2a1) of the mating connector, the rear terminal including an elastic portion and a rear contact-point portion, the elastic portion of the rear terminal extending parallel to the elastic portion of the front terminal in a cantilever manner from an upper edge (4c1) of the base end portion, the rear contact-point portion being supported at an end of the elastic portion of the rear terminal and contacting the terminal surface (2a1) of the mating connector that has been wiped by the front contact-point portion, wherein a high-impedance portion is provided between the circuit-board connection portion and the base end portion, characterized in that the high-impedance portion having a higher impedance than the terminal portion thereby eliminating impedance mismatching at a terminal transmission path by canceling a reduction in an impedance at least at the terminal portion as regards a transmission signal that flows from the circuit-board connection portion at a primary side to the terminal portion at a secondary side, wherein the high-impedance portion is a linear terminal section provided with a bent portion the linear terminal section with a bent portion has a transmission length that cancels the reduction in the impedance at least at the terminal portion in the terminal transmission path, an impedance at a primary-side transmission path is made higher than an impedance at a secondary-side transmission path by the high-impedance portion serving as the terminal section, the primary-side transmission path being formed by the circuit-board connection portion and the high-impedance portion, the secondary-side transmission path being formed by the base end portion and the terminal portion, and the high-impedance portion is adjacent to the base end portion and the terminal portion, and an end portion of the high-impedance portion at a side of the base end portion is directly connected to the base end portion and is close to the terminal portion, so that the reduction in the impedance at the terminal portion is canceled by increasing an impedance at the high-impedance portion before the impedance at the terminal portion is reduced, and the distance between the high-impedance portion and the terminal portion is less than or equal to 7 mm. a circuit-board connection portion that is connected to a circuit board; a terminal portion that contacts a terminal surface (2a1) of a mating connector; and a base end portion that supports an end of the terminal portion, wherein the terminal portion includes a front terminal and a rear terminal, the front terminal including an elastic portion and a front contact-point portion, the elastic portion of the front terminal extending in a cantilever manner from the base end portion in a fitting direction in which a connector is fitted to a mating connector, the front contact-point portion being supported at an end of the elastic portion of the front terminal and wiping off foreign material that is adhered to the terminal surface (2a1) of the mating connector, the rear terminal including an elastic portion and a rear contact-point portion, the elastic portion of the rear terminal extending parallel to the elastic portion of the front terminal in a cantilever manner from an upper edge (4c1) of the base end portion, the rear contact-point portion being supported at an end of the elastic portion of the rear terminal and contacting the terminal surface (2a1) of the mating connector that has been wiped by the front contact-point portion, wherein a high-impedance portion is provided between the circuit-board connection portion and the base end portion, characterized in that