Abstract: A braille input device includes a keypad having a plurality of keys. The keypad includes: three left side corresponding keys corresponding to three dots disposed at a left side column of braille; three right side corresponding keys corresponding to three dots disposed at a right side column of braille; a plurality of left side multi keys, each left side multi key corresponding to two or more keys among the left side corresponding keys; and a plurality of right side multi keys, each right side multi key corresponding to two or more keys among the right side corresponding keys.