during the construction of the cutter suciton dredger ,the load of the cutter and the dredger pump fluctuates frequently and the amplitude of the fluctuation is large,which provides a background premise for the application of the lithium battery energy storage system.At the same time,as high energy consumption equipment,the cutter suction dredger is urgent to combine with lithium battery energy srorage system.This article classifies the mainstream domestic cutter suction dredgers according to power system configuration,and conducts relevant application research on the combination of power system and lithium battery energy storage system application for typical ships of each type,and points out wether each type of ship has the application potential of the energy storage system and provides a reference for subsequent real ship applications.