The invention relates to a switch, and particularly relates to a rotary universal switch. The rotary universal switch is characterized by comprising an upper PCB (printed circuit board), a rotation controller and a lower PCB, wherein the front of the lower PCB is provided with multipath copper metal annular circuits and each path of control terminal, the structure of the back of the upper PCB is the same as that of the front of the PCB, the rotation controller is arranged between the upper PCB and the lower PCB, the rotation controller is provided with multipath contacts, the multipath copper metal annular circuits on the back of the upper PCB circuit board are communicated with the multipath copper metal annular circuits on the front of the lower PCB circuit boards through the corresponding contacts of the multichannel contacts. The switch provided by the invention is of a simple mechanical structure, namely, conductive circuits are directly arranged on the upper and lower PCBs, and the corresponding circuits on the upper and lower PCBs can be switched on/off through the multipath contacts arranged on the rotation controller, thus the multipath control can be realized.