The application herein provides a foldable mouse and the solution is: the mouse comprise a foldable substrate and a circuit board, wherein the foldable substrate includes at least five planes connected in sequence, two planes of the foldable substrate are connected by means of a detachable connection, in case that these two planes are not connected, the foldable substrate can be unfolded, in the case that there two planes are connected, the foldable base plate can be folded to be a bent pyramid, and the circuit board is arranged on the inner side of the foldable base plate. This application can fold the mouse to make it easy to be carried.