A fixation seat for ski shoe includes a seat, a connecting structure, a left support element, a right support element, and an ankle protecting board. The connecting structure is disposed on the seat for connecting with a ski board. The left and the right support elements extend upward and obliquely from two sides of the seat toward the rear side of the seat. At the rear side of the seat, the left support element is distant from the right support element a predetermined distance. The ankle protecting board is connected to tops of the left and the right support elements.