The invention discloses a lifting wire rope for an oil pumping unit. A torsion-proof steel wire rope is adopted, a first convex jacket is concentrically arranged at a first end of the torsion-proof steel wire rope in a sleeved manner and is of a sleeve structure in the shape of a stepped cylinder, a small-diameter end of the first convex jacket is arranged in a manner of facing a second end of the torsion-proof steel wire rope, a metal filler is arranged between the first convex jacket and the first end of the torsion-proof steel wire rope, the first convex jacket and the torsion-proof steel wire rope are connected into a whole by casting through the metal filler, the second end of the torsion-proof steel wire rope is fixedly connected with a hanging ring, and the hanging ring is in threaded connection with a second convex jacket. The torsion-proof steel wire rope is adopted for the lifting wire rope, so that torsion in the process of use is avoided; the torsion-proof steel wire rope is in threaded connection with the convex jacket by adopting the hanging ring, so that convenience is brought to length adjustment, and breaking of a polished rod is avoided.