Abstract: Based on a slope treatment of soft soil filling project with ship situation in Zhuhai, several kinds of reinforcement schemes are introduced and compared. Then, the riprap back pressure method is adopted. The reinforcement idea is analyzed. Firstly, the necessary parameters are back analyzed by considering the actual location of slip circle, and then, various forms of riprap with different widths, heights and stages of counter-weight platform are analyzed and calculated. In this way, the ultimate reinforcement scheme is determined. The successful application verifies the economic applicability of riprap in treatment of soft soil fill slope. It may provide reference for the design of future projects.