Aiming at the general layout of the port with complicated hydrodynamic conditions,based on the mining port project of Pointe Noire,we put forward two designs of port general layout according to the in-depth analysis of the main influence factors(such as the wave,current,sediment and etc.).Through comparison of two designs and the model test,we determine the design of double basin with unilateral breakwater backfilled by dredged soil in this paper.In the selected design,impact on the surrounding hydrodynamic environment is little,construction commencement is readily facilitated and a high return on investment is assured.The results show that for the construction of ports in Congo and adjacent water area with complex hydrodynamic environment,the key considerations of the general layout are the shield effect of the wave,coastal sediment transport,joint effect on the vessel by the wave and current,and etc.