The invention discloses a river channel dredging ship, and relates to the technical field of desilting. The river channel dredging ship comprises a ship body, wherein a driving
propeller is installed at the bottom of the ship body, a collecting frame is fixedly connected to the inner side of the ship body, a fixing plate is fixedly connected to the outer side of the ship body, an arc-shaped limiting clamping plate is fixedly connected to the side, away from the ship body, of the fixing plate, the side, close to the fixing plate, of the collecting frame communicates with a water outlet
pipe, the top of the collecting frame communicates with a feeding
pipe, a water suction pump is installed at the position, close to the collecting frame, of the outer side of the water outlet
pipe, a mud suction pump is installed at the position, away from the collecting frame, of the outer side of the feeding pipe, a material taking door is installed on the side, away from the water outlet pipe, of the collecting frame, and a filtering device is mounted on the inner wall of the collecting frame. According to the river channel dredging ship, the purpose of
cutting entanglements such as
underwater aquatic plants is achieved, normal dredging work is effectively guaranteed, and the dredging efficiency of the device is improved.