Medicine storage cabinet

The invention discloses a medicine storage cabinet. The medicine storage cabinet comprises more than one medicine storage box and frames, wherein the medicine storage boxes are located in the frames, each frame and the corresponding medicine storage box constitute a medicine storage unit layer, and the medicine storage cabinet comprises more than one medicine storage unit layer; the frames of the adjacent medicine storage unit layers are connected detachably. The medicine storage unit layers are stacked through the frames and extend in the width direction and the height direction, space of a pharmacy can be used fully, the medicine storage cabinet is high in extendibility and reasonable in structure, and the utilization rate of cabinet-body materials, the space and other resources is high.