The present invention discloses a touch panel, comprising: a substrate, a touch unit array, a plurality of connection wires, an impedance adjusting unit and controller. The impedance adjusting unit and the controller are arranged on the substrate, the touch unit array connects to the impedance adjusting through the plurality of connection wires, the impedance adjusting unit connects to the controller, the impedance adjusting unit is processing adjustment to impedance of each connection wires to make impedance of each connection wires consistent. The touch panel of the present invention will adjust impedance of each connection wire to be consistent for improving the sensing precision of touch location of touch panel.