The inclined coil spring contact finger can transmit strong current in a small space, and can also be used as a pure mechanical connection. There is no restriction on its use, and it is suitable for use in a variety of static or dynamic medium and high voltage environments. The size of the inclined coil spring contact finger and the number of independent coil turns make the spring suitable for various electrical contact designs, and the maximum contact point is the best current carrying capacity. Each coil will independently compensate for contact and surface changes, which allows wider tolerances between fittings. Multiple contact points increase conductivity, and its operating temperature is relatively low, so its service life is longer.