The invention belongs to the technical field of high-temperature gas cooled reactor nuclear fuel element production lines, and particularly relates to an automatic feeding and discharging device for asintering furnace. The automatic feeding and discharging device comprises a roller way transport system, an inductor system and a robot grabbing system; automatic feeding and discharging of the sintering furnace are achieved by installing a conveying line and a robot, a material boat can be automatically conveyed from the furnace tail to a furnace head inlet through the conveying line, and the robot can collect sintered materials and place the material boat subjected to material distribution onto a material boat conveying roller way again. The automatic feeding and discharging device for thesintering furnace is simple in structure, convenient to operate, stable in operation and capable of meeting continuous production requirements, the labor amount of operators and irradiation harm to the operators can be effectively reduced.