Reclamation project needs to take sand to the shore from long distance.Joint construction with the hopper dredger dredging and hopper barge can improve the efficiency of the project from the far distance,also can supplement the construction capacity and reduce the overall cost.We establish an effective calculation method by the process feature and factor analysis method.With the actual construction data,we calculate different forms of comprehensive efficiency from the different transport distance.We obtain the combined efficiency of the typical working conditions and applied boundary conditions,which can provide the data for support and decision.