PURPOSE: To obtain an electrode easy to made and free from deterioration in the insulation even due to use at a high temperature or the like by sealing an internal liquid with a silicon rubber outside a sealing piece while internal and external lens are connected electrically in a contactless manner mechanically with an internal conductive silicon rubber.

CONSTITUTION: A glass film 2 is mounted at the tip of a support tube 1. On the other hand, a dichroic-molded seal piece 5 comprising a conductive silicon bubber 51 and a non-conductive silicon rubber 52 is molded while a lead 61 is connected to silver chloride 4. Additionally, a lead 62 is stuck into the rubber 51 from the opposite side thereof while a lead 61 is stuck into the seal piece 5 from the side of the rubber 52 to the rubber 51. Therefore, an internal liquid 3 is injected into a support tube 1, the seal piece 5 with the leads 61 and 62 forced into the support tube 1 to the specified position and then, the internal liquid 3 sealed up. Then, a silicon 7 is injected into an upper clearance of the seal piece 5 in the support tube 1 for adhesion. Finally, the support tube is adhesively inserted into an outer tube 8 made of an anticorrosive PBS resin to complete a glass electrode.