The second braided shield 5b to be provided in the outer side of the metal shield layer 5 is mainly for intercepting an external noise. The high frequency signal transmission cable 1 is designed to be used in a factory or the like, for example, and is affected by a large energy noise such as a low frequency noise or the like due to on/off switching of a motor to drive the robot, the control device, or the like. For that reason, in the second braided shield 5b, it is desirable to use the metal wires 12 having a larger outer diameter than that of the metal wires 11 used in the first braided shield 5a, to thereby lower the conductor resistance of the second braided shield 5b.