Novel underwater weed cutting boat

The invention discloses a novel underwater weed cutting boat. The novel underwater weed cutting boat comprises a pontoon body and a support rack and is characterized in that connecting shafts are respectively connected to two ends of the support rack, a weed cutting device is connected to the connecting shaft away from the pontoon body through a connector, sprockets sleeve two ends of each connecting shaft, chains are connected to the sprockets in a meshing manner, conveying chains parallel with the connecting shafts are arranged on the chains, the input end of the connecting shaft away from the pontoon body is connected with the output end of the first motor through a first belt, one side, away from a support column, of the first motor is provided with a second motor, the output end of the second motor is connected with a weed shifting roller through a second belt, the pontoon body is provided with a weed collecting box close to the weed shifting roller, one end, away from the supportrack, of the pontoon bod