The invention relates to the field of flexible direct current power transmission, and specifically relates to a voltage-sharing electrode used for a converter valve. The voltage-sharing electrode usedfor the converter valve comprises a base which is assembled in an electrode mounting hole of a cold water pipe of the converter valve in a sealing manner; a probe which is inwardly inserted to the cold water pipe of the converter valve is fixedly arranged on the base in a split-type manner; the base comprises a middle substrate; an external conductive connecting part conductively connected with the probe is arranged at the outer end, deviating from the probe, of the middle substrate; an injection moulding sleeve is arranged outside the middle substrate; the injection moulding sleeve comprisesa shaft sleeve part which is arranged on the outer side of the middle substrate in a sleeving manner; and the shaft sleeve part has an external screw thread section which is used of being matched with an internal screw thread section in the electrode mounting hole so as to mount the voltage-sharing electrode to the electrode mounting hole. The external screw thread section connected with the coldwater pipe of the converter valve on the voltage-sharing electrode used for the converter valve adopts plastic screw threads, so that the problem of screw thread sliding of the water pipe is solved,so that the service life of the cold water pipe of the converter valve is prolonged.