A folding keyboard includes a number of keypads, a number of telescopic rods arranged on opposite sides of the number of keypads, and a number of connecting cables for electrically coupling the number of keypads together. The number of keypads are combined into a unified piece by the number of telescopic rods being in a contracted state. The number of keypads are separated from each other by the telescopic rods being in an extended state. The number of keypads separated from each other can be stacked on top of each other.