The utility model relates to the technical field of agricultural machinery. The utility model further discloses a conveying device of the straw harvester. Main box body, a feeding hole is formed in the left side wall of the main box body; a feeding groove is fixedly formed in the left side wall of the main box body; rectangular holes are formed in the inner wall of the front face and the inner wall of the back face of the feeding groove. A fixed plate and a mounting plate are fixedly mounted on the left side wall of the main box body; a first motor is fixedly mounted at the bottom of the fixedplate through a bracket; a rotating rod is fixedly mounted at the output end of the first motor, the end, away from the first motor, of the rotating rod penetrates through the fixing plate and is fixedly provided with a fixing rod, a second motor is fixedly mounted at the bottom of the mounting plate through a support, and a rotating shaft is fixedly mounted at the output end of the second motor.According to the conveying device, the phenomenon that the conveying device is blocked due to the fact that materials are excessively accumulated in the feeding groove can be avoided, the situation that equipment is blocked and even breaks down is avoided, and smooth operation of the equipment is guaranteed.