Photoelectric composite three-phase flow sensor

The invention provides a photoelectric composite type three-phase flow sensor. The photoelectric composite type three-phase flow sensor comprises an insulating substrate; the plurality of probes comprise a first probe and a second probe, the first probe and the second probe are connected with one end of the insulating substrate, optical fibers are arranged in the first probe and the second probe in a penetrating manner, and the lengths of the first probe and the second probe are different; all the electrode rings are divided into a first electrode ring assembly and a second electrode ring assembly, the first electrode ring assembly comprises a first electrode ring and a second electrode ring, the first electrode ring and the second electrode ring are arranged on the insulating substrate at intervals in the axial direction of the insulating substrate, and the second electrode ring assembly comprises a third electrode ring and a fourth electrode ring; the third electrode ring and the fourth electrode ring are a