The invention discloses a storage battery box. The storage battery box comprises a storage battery box body of which the top is open, wherein the storage battery box body is transversely partitioned into at least four equal storage areas; a pair of vertical protruding strips are fixed on each of a pair of side surfaces on the inner side of each storage area; the lower ends of the protruding strips are not connected with the bottom surfaces of the storage areas; the upper ends of the protruding strips are not connected with the upper edges of the storage areas; the cross sections of the protruding strips are isosceles triangles; a protruding strip transition area is arranged at the upper end of each protruding strip; the protruding height of each protruding strip transition area on the side surface of the storage area gradually becomes smaller from the bottom to the top. By adopting the structure that a pair of vertical protruding strips are fixed on each of a pair of side surfaces on the inner side of each storage area inside the storage battery box, and under the premise of clamping polar groups, gaps between the polar groups and the storage areas are enlarged, so that acid injection is easier, and thus the production efficiency as well as the quality of a storage battery are greatly improved.