Considering　of　self-weight　consolidation　as　the　main　effect　during　self-weight　deposition　and　the　nonlinear　relationship　between　effective　stress,　permeability　coefficient　and　solid　volume　fraction　during　self-weight　consolidation,　one　dimension　self-weight　consolidation　governing　equation　of　dredged　fill　was　established　based　on　some　reasonable　assumptions.　The　new　equation　was　discreted　by　the　Crank-Nicolson　difference　format　and　solved　by　the　finite　difference　numerical　solution　SFCCP　computing　program.　Numerical　simulation　of　the　void　ratio　for　dredged　fill　was　conducted　by　the　SFCCP　computing　program　during　self-weight　deposition.　It　shows　that　the　void　ratio　results　based　on　the　new　model　are　close　to　the　results　from　in-situ　tests,　that　the　rationality　of　the　analytical　model　and　correctness　of　finite　difference　numerical　solution　program　are　validated.　The　new　equation　can　also　provide　a　favorable　prediction　on　physical　mechanical　indices　for　self-weight　deposition.