The design of the pile is the key in all-vertical-piled wharf,which has a large free cantilever length.Taking a project for example,we compare the design of the all-vertical-piled wharf before and after adding two kinds of horizontal braces,and study the influential characteristics of horizontal braces on the internal force of the piles and beams.The results show that the displacement and bending moment in the pile top can be decreased effectively,and the bending moment of the piles is more harmonious by adding horizontal braces.