1. With wide applications, cutter suction dredger can operate in rivers, lakes and seas for dredging, fairway excavation or hydraulic reclamation.
2. The cutter suction dredger has high work efficiency, large output and far pumping distance. Output of a large cutter suction sand dredger can be up to thousands of cubic meters per hour; it can pump silt to thousands of meters away through a dredge pump and dredging pipeline relying on strong power. 
3. The cutter suction dredger features simple operation and easy control. The dredger makes the steel pile positioning and stepping through the trolley of the stern. It uses steel cables at both sides of the reamer arm rack and anchors fixed to both sides of the slot. Relying on lift winch traction, it swings and cuts silt material at both sides, and works under certain controlled angle. Cut material is pumped to the stack-up yard through the dredging tube. Stepping of the dredger is from alternating movement of two piles, moving forward.
4. The large cutter suction sand dredger has a self-propelled system for self-propelling in position in migration. Most small and medium-sized dredgers have no self-propelled system, which are dragged by tugboat. Small and medium-sized dredgers can be designed and built to assembling type and transported to the site through land transportation. They can be operated after assembling. 
5. The cutter suction dredger has good economic efficiency. It completes material excavation and transportation one time, requiring no cooperation of other ships and several handling. It has relatively lower engineering cost.