The anti-typhoon single point mooring system is an effective method for solving the problem of anti-typhoon anchoring of large & medium-sized non-powered vessels, and one of the important keys to antityphoon single point moorings is to design a simple, practical and reliable mooring hawser arrangement. The paper gives a detailed description of a mooring hawser system which is applicable to the anti-typhoon mooring system,together with an elaborate analysis of the medium of rope, mooring ring and mooring method.