The dredging project of Biguiyuan in Malaysia has the characteristics of complex engineering soil and dry mud surface.In the construction site,a series of problems,such as prone to plugging,large fluctuation range of flow velocity,and muzzle,are easy to be encountered,which seriously affect the construction efficiency of ships.To solve the above problems,through the study of mining cutter-suction ship control technique,transmission technology,we changed the way mining stratification,transmission construction parameters such as flow rate and concentration of conveying to optimize its construction technology.After the process optimization,there were no problems such as collapse or blockage in the construction of the dredging ship of country garden in Malaysia,which accelerated the construction schedule and saved the construction cost.