An air-permeable storage cabinet, wherein the left and right sides of the bottom of the upper frame are provided with a first connector respectively, a first connecting hole is formed in the tops or inner side faces of the left frame and the right frame respectively, the bottom face of the rear of the upper frame is provided with a second connector, a second connecting hole is formed in the top of the rear frame, the left and right sides of the top of the lower frame are provided with a third connector respectively, a third connecting hole is formed in the bottoms or inner side faces of the left frame and the right frame respectively, the bottom face of the rear of the lower frame is provided with a fourth connector, and a fourth connecting hole is formed in the bottom of the rear frame.