To provide a corner tile obtaining stable appearance quality at a butting part without being influenced by the cut position of a joining surface.

In a decorative tile member 10, a part of the surface side 10b is provided with a decorative surface 10h with decorative recessed parts 10c and protruding parts 10d alternately provided at fixed spaces to form a pattern. The recessed parts 10c and protruding parts 10d are alternately formed to constitute horizontal sectional shape as continuous herring-bone gear shape presenting almost triangular shape. A flat surface part 10e to be cut is provided along an end face positioned near the joining surface 10a out of the surface side 10b. The flat surface part 10e has a fixed breadth dimension narrower than the breadth dimension of the decorative surface 10h and is formed flat almost over the whole region in a vertical direction.