The utility model discloses a protective storage rack for stainless steel bars, which relates to the technical field of stainless steel storage and comprises a bottom supporting unit, a fixed supporting unit, a movable supporting unit and a movable clamping unit, the fixed supporting unit and the movable supporting unit are arranged at the top of the bottom supporting unit, and the movable clamping unit is arranged between the movable supporting unit and the bottom supporting unit. The movable clamping unit comprises a sliding groove formed in the top of the bottom supporting unit, a sliding wheel movably penetrating through the sliding groove and arranged in the sliding groove, an L-shaped side plate installed on the side wall of the sliding wheel, a clamping groove formed in the side wall of the bottom supporting unit, a movable through hole formed in the side wall of the L-shaped side plate, and a movable column movably penetrating through the movable through hole and arranged in the movable through hole. And the clamping column is mounted at the end, adjacent to the clamping groove, of the moving column. According to the protective storage rack for the stainless steel bars, through the arrangement of the fixed supporting unit and the movable supporting unit, the adjustment of the related distance according to the length size of the stainless steel bars is achieved.