PURPOSE: To make it possible to set tiles easily by applying tile undercoat to the surface of concrete to coat grouting, and sticking a tackified sheet on tile pieces to vibrate and secure tile plates by means of a vibrator.

CONSTITUTION: Tile undercoat 2 is applied to the surface of mortar or concrete 1, and the mortar of grouting 3 is coated on the surface thereof. The rears of tile unit plates consisting of tile pieces 4 with a tackified sheet on a part of patterns thereof are pushed against grouting to temporarily fasten. Furthermore, the tile unit plates are vibrated by a vibrator 9, and the tile pieces 4 are pushed to secure each other. According to the constitution, a construction period can be greatly reduced.