To provide a supporting plate for resting a plate-like article to be fired, e.g. a tile, at the time of firing in which cracking or damage due to concentration of stress is prevented, and a sintering support equipped with such a supporting plate.

The supporting plate 5 is employed in combination with a base 2 for an article to be fired having a fixing groove for arranging the plate while resting wherein a body section 6 for resting an article S to be fired is formed integrally with a leg section 8 extending downward from the lower end of the body section when viewed under resting state. Lateral width at a part where the body section abuts on the leg section is not less than 70% of the lateral width at the lower end part of the body section and the leg section has a part 8a where the lateral width decreases gradually in the forward end direction from the boundary to the body section at least in the region abutting on the body section.