The quality and the operating requirements of steel wire rope used with construction machinery were analyzed.The structure parameters of steel wire rope such as diameter,lay length,lay angle,helix length,curvature radius and so on were studied.The calculation formulas of the above structure parameters were deduced by the mathematic method.A table about the important parameters of steel wire rope for engineering machinery was established by use of the drawn calculation formulas.The calculation processes of steel wire rope for engineering machinery can be greatly simplified by the parameters table,it has the guiding significance for the manufacture and selection of steel wire rope used with engineering machinery.