To prevent wearing-out and peeling even when a person passes by a method wherein a hole is bored to the surface of a resinous floor tile, type, etc., are displayed, a luminous fluorescent material is buried into the hole, and the surface is flattened and embossed.

A hole 2 is bored to the surface of a resinous floor tile 1, type, a pattern, the arrow, etc., are displayed, a luminous fluorescent material 3 is buried into the hole 2, and the surface is flattened and embossed. When the fluorescent material 3 is introduced into the hole 2, there are a method, in which the fluorescent material 3 is solidified and buried and bonded, and a method, in which the liquefied fluorescent material 3 is poured into the hole 2 and solidified and joined. The same color as the floor tile 1 is mixed into the fluorescent material 3, and the fluorescent material 3 can be made inconspicuous when there is a light such as a fluorescent lamp-for example, blue is also mixed with the fluorescent material 3 when the floor material is blue. The floor tile 1 can be used as the floor tile according to a conventional method, and is not worn out and peeled even by use for a prolonged term because the fluorescent material 3 has thickness.