The invention relates to an automatic logistic conveying device for machining an end face of a lift guide rail. The automatic logistic conveying device comprises a feeding rack, and is characterized in that a feeding turnover mechanism is arranged at the output end of the feeding rack; and a step fixing rack is arranged at the output end of the feeding turnover mechanism. Meanwhile, a discharging turnover assembly is arranged at the output end of the step fixing rack; and lathe feeding and discharging racks are distributed on the step fixing rack. Thus, the labor intensity of workers can be reduced, and the production enthusiasm can be improved. Meanwhile, the transporting and turning-over frequency of products in a process can be reduced, so that the product collision defect is reduced, and the product quality is improved. Furthermore, the labor participation in a product manufacturing process is further reduced, and the influence on the product quality due to factors, such as human mood, can be reduced. More importantly, the automation of an assembly line is improved, and the risk and the hidden danger of influencing the production by staff variation can be reduced. Moreover, the layout is more compact, the production beat is stable and consistent, and the entire production image is improved.