This paper introduces the application and practice of self-propelled dredger without spoil hopper, self-propelled full-bottom dredger, double side barge unloading suction dredger and combined operation integrating barge equipped dredging process and rotary blowing filling process in the project of Tianjin port’s waterway maintenance and dredging. It is considered that the dredging blow-fill combination for the dredging projects is the future research direction of the front-edge dredging equipment.