To provide an electrode for a capacitance type level gauge with a simple construction, of a small size and light weight, with an easy mounting feature, and capable of accurately detecting a level regardless to what depth a tank is filled with a liquid.

This electrode for a capacitance type level gauge for detecting a change of a level by a change of capacitance comprises a cylindrical outside electrode 1 with an opening at a bottom, a cylindrical middle electrode 3 having a diameter smaller than the outside electrode 1 with a seal 3b at a bottom, and a cylindrical or round bar shaped central electrode 5 having a diameter smaller than the middle electrode 3, while these three electrodes being coaxially disposed.