Light and thin reverse folding keyboard

The utility model provides a light and thin type reverse folding keyboard, which relates to the technical field of keyboards, and comprises a first keyboard, a second keyboard and at least two connecting pieces, the first keyboard is electrically connected with the second keyboard, and the bottom of one end of the first keyboard is provided with first accommodating grooves which have the same number as the connecting pieces and are in one-to-one correspondence with the connecting pieces; the bottom of one end of the second keyboard is provided with second containing grooves which are the same as the connecting pieces in number and are in one-to-one correspondence with the connecting pieces, one ends of the connecting pieces are contained in the first containing grooves and hinged to the first keyboard, and the other ends of the connecting pieces are contained in the second containing grooves and hinged to the second keyboard. The first keyboard and the second keyboard can be reversely folded through hinging o