The invention discloses a storage rack with a height-adjustable storage rack boards. The storage rack comprises a frame and the storage rack boards mounted on the frame, wherein the frame comprises at least three standing columns placed vertically; a through groove is formed in each standing column along an axis; each storage rack board is equipped with connecting plates corresponding to the number of the standing columns; at least two installation holes are coaxially formed in each connecting plate; and the storage rack boards and the standing columns are fixed firmly by threaded fasteners through the installation holes in the connecting plates and the through grooves in the standing columns. Therefore, the installation positions of the storage rack boards can move along the through grooves, so that the installation heights of the storage rack boards are adjusted, and the requirements for the heights of to-be-placed goods are met.