Based on the measured hydrologic and sediment data in Dafeng Port area,we take five widely used sediment carrying capacity formulas to caculate in this area.On this basis,we choose the concentration coefficient and deviation coefficient method to make the comparative analysis of calculation results.The results show that the estuarine sediment carrying capacity formula in Dafeng Port area can reflect the sediment transport,and fit for Dafeng Port area sediment carrying capacity formula.These formulas are applied to calculate the sediment change trend after reclamation in the Dafeng Port reclamation project.The numerical simulation results are basically the same with the calculated ones.The empirical relation in Dafeng Port area has good applicability.