The utility model relates to an anti-corrosion oil pipe coupler which is applied to an underground tubular column of an oil field. The anti-corrosion oil pipe coupler mainly comprises an oil pipe coupler and a sealing ring; both ends of the oil pipe coupler are provided with tapered internal threads; and the anti-corrosion oil pipe coupler is characterized in that an annular sealing ring is arranged on the inner wall between the tapered internal threads on both ends of the oil pipe coupler. The inner wall of the oil pipe coupler is provided with an annular groove; the outer wall of the sealing ring is provided with an annular bulge; and the annular bulge of the sealing ring is inlaid in the annular groove of the oil pipe coupler. The anti-corrosion oil pipe coupler has the benefit of effectively preventing the medium with the corrosivity from directly contacting with an exposed thread, improving the anti-corrosion performance of the oil pipe coupler and comprehensively improving the anti-corrosion performance and prolonging the service life of the tubular column of the oil pipe.