The invention discloses a bracket used for lead acid storage battery plate solidification. The bracket comprises a horizontally arranged supporting plate, a bracket plate, a rectangular limit board, and a sleeve; the supporting plate is provided with at least two straight slots arranged in parallel at intervals; the straight slots are long and narrow, and run through the supporting plate; the bracket plate is connected with one of the straight slots vertically via clamp connection; the lower end of the bracket is provided with a first clamping structure matching with the straight slots; the rectangular limit board is horizontally connected with the upper end of the bracket plate via clamp connection, and is provided with a clamp groove; the upper end of the bracket plate is provided with a second clamp structure connected with the clamp groove; the two side edges of the rectangular limit board which are parallel to the bracket plate are provided with limit grooves uniformly at intervals; the sleeve and the rectangular limit board are arranged in a split type manner; and the groove openings of the limit grooves are blocked by the sleeve along the side edges of the rectangular limit board. The bracket is small in size, is convenient for operation, and is capable of realizing sideways arrangement of the battery plates and saving space; spacing distance of the battery plates is maintained; adhesion caused by interference of the battery plates is avoided; excellent gas permeability and ventilation performance are ensured; and solidification effect is improved.