“Tian Kun Hao”is the first heavy-duty cutter suction dredger with a side-blowing barge function and actual barge construction experience in China. Aiming at the low construction efficiency of “Tian Kun Hao” in a project abroad，we analyze the data of its barge loading and optimize the key parameters of the 7，000 m3 mud barge berthing and leaving the “Tian Kun Hao” to increase the productivity of “Tian Kun Hao”. Through the test of barge loading of small mud barge cooperating with “Tian Kun Hao”，it is found that the small mud barge with a capacity of 2，000 m3 has problems with “Tian Kun Hao”. Some suggestions are put forward for the improvement of the fender，mooring device，barge loading pipe，and other equipment of “Tian Kun Hao”，which can provide a reference for the reconstruction of “Tian Kun Hao” when the small mud barge cooperates with the construction project.