The invention discloses a convenient aluminum plate storage box which comprises a box body, a fixed bottom plate and a sliding bottom plate. Two brackets are symmetrically arranged on the inner front side and the inner rear side of the box body, each bracket comprises two spaced vertical columns, a plurality of supporting blocks are equidistantly arranged on each vertical column, the middle of each supporting block is hinged to the corresponding vertical column, the positions of the supporting blocks on the two vertical columns correspond to each other, each supporting block comprises a supporting end, a counterweight end, a lifting position, a position to be lifted and a free position, the upper surface of the supporting end of each supporting block is horizontal when the supporting block is placed at the lifting position, the counterweight end of each supporting block is used for driving the upper adjacent supporting block to rotate from a free position to the position to be lifted, and the fixed bottom plate and the sliding bottom plate are distributed at the bottom of the box body at intervals. The storage box facilitates storage and taking of aluminum plates, is high in storage and taking efficiency and practicability and applicable to the aluminum plates with different widths, and the applicable range of the storage box is widened.