The utility model discloses a river course hydraulic suction dredge inhale mud device, inhale the mud seat including rotate connecting the connecting rod at the hull front end, rotating to connect at the connecting rod front end to and install the dredge pump on the hull, and the entrance point of dredge pump is connected through inhaling the mud pipe and inhaling the mud seat, and the exit end of dredge pump is connected with pumps the defeated mud pipe on the river bank with silt, the connecting rod including with the first connecting rod of the anterior articulated of hull to and one end articulates the other end and inhales mud seat articulated second connecting rod with first connecting rod, first connecting rod and the articulated shaft of hull, articulated shaft along the horizontal direction setting that the mud seat is inhaled to the second connecting rod, first connecting rod is perpendicular with the horizontal direction with the articulated shaft of second connecting rod, the tip welding of second connecting rod has and inhales the connector of mud seat articulated U -shaped. Should inhale the mud device can high efficiency ground clearance river bed silt, provide convenience for the cleaning work in river course.