To use a flexible base board as a base board, by providing a fixing construction method of a tile panel directly fixable by a machine screw and an anchor to a backing skeleton via the base board from a tile joint part of an optional place without damaging a tile, by devising a tile shape.

This fixing construction method of the tile panel is characterized by being fixed to the backing skeleton via the base board from a cutout part, by arranging the cutout part in at least a part of the tile, when fixing the tile panel of installing a plurality of tiles on a surface of the base board to the backing skeleton. The cutout part is arranged, for example, in a joint crossing part of the tile.