A new simplified model for the distribution coefficient of horizontal force in the bents of high-piled wharf is built and solved in this paper.When determining the distribution coefficient,the superstructure of the dock can be simplified as reinforcing beam.Bents can confine the horizontal and angular displacement.Thus,the rotational stiffness coefficient was put forward and elaborated.Then the simplified calculation model used in standard was modified and the simplified calculating formula for distribution coefficient in the bents was deduced,which was also applied to the wharf of inclined piles.The results show that the simplified formula can improve the design precision,save materials and cost comparing with the design code especially for the all-vertical-piled wharf.It offers a reference for structure design and standard revision.