Abstract: The baling technology of round baler is the embodiment of agricultural modernization technology, and the conveying quality of round baler auger is the key factor affecting the material harvest. Based on the transmission principle of the auger, this paper analyzes the factors affecting the quality of auger transportation, and puts forward the corresponding solutions to improve the speed of the auger, increase the screw pitch of the blade of the auger, and change it to the hollow auger structure and the assembly structure of the auger. Through the test, the problem of grass blocking in the operation of round baler is effectively solved.