The present disclosure discloses a light emitting touchpad device including a circuit board, a plurality of sensing elements, a light guiding plate, a plurality of first spacing blocks, and a plurality of second spacing blocks. The sensing elements are disposed on the circuit board. Each of the first spacing blocks and each of the second spacing blocks are respectively disposed on a bottom surface and a top surface of the light guiding plate, and are all located in a nil-light spot area of the light guiding plate. A spacing distance between two adjacent first spacing blocks is a third length. A spacing distance between two adjacent second spacing blocks is a fifth length. A position of any one of the second spacing blocks corresponds to a position between two of the first spacing blocks.