In modern dredging construction,it is often necessary to transport the silt of rivers and lakes over a long distance.For the problem of long distance transportation in dredging,a series of construction technologies for dredgers and booster pumps are studied.The results show that booster pumps in series can significantly increase the transport distance of sediment.The theoretical value of pipeline resistance loss helps to determine the location of booster pump-ships,and in the process of construction,the construction cooperation between dredgers and pump ships is particularly important.Through the Taihu dredging project,we conclude the technological process,pipeline transport resistance and location distance in series of pump ships.Therefore,the efficiency of construction and construction quality are improved.