The invention relates to a bar feeding assembly of an aluminum bar peeling machine. The bar feeding assembly comprises bar feeding guide rails (7.1), the bar feeding guide rail (7.1) are arranged on amachine frame (1), bar feeding sliding plates (7.2) are arranged on the bar feeding guide rail (7.1), and a lower bar feeding roller frame (7.4) is arranged on the bar feeding sliding plates (7.2); and a front sliding seat (7.3) and a rear sliding seat (7.3) are arranged on each of the left side and the right side of the lower bar feeding roller frame (7.4) correspondingly, and the front slidingseat (7.3) and the rear sliding seat (7.3) on each of the left side and the right side are hinged to a side bar feeding roller frame (7.5); and air cylinder seats (7.7) are arranged on the left side and the right side of the bar feeding sliding plates (7.2), and bar feeding air cylinders (7.8) are hinged to the air cylinder seats (7.7), and the upper ends of the bar feeding air cylinder (7.8) arehinged to the outer sides of the side bar feeding roller frames (7.5). According to the bar feeding assembly of the aluminum bar peeling machine, a bar can be stably and effectively supported and guided in the bar peeling process, the straightness for bar peeling can be guaranteed, the peeling efficiency can be improved, and the peeling loss can be reduced.