Anti-deformation melamine dinner plate

The utility model relates to the field of dinner plate product structures, in particular to an anti-deformation melamine dinner plate which is mainly used in public places such as canteens and the like and comprises a plate body, a downward annular protrusion is formed at the bottom of the peripheral side of the plate body, a turned-over edge extending outwards is arranged on the edge of the peripheral side of the plate body, and a containing area used for containing bowls and dishes is formed in the turned-over edge. An inner concave portion is formed inside the annular protrusion, reinforcing ribs distributed in a crossed mode are arranged on the surface of the inner concave portion, the peripheral side of the inner concave portion is of a step-shaped structure, a supporting piece is embedded in the inner concave portion, the supporting piece is bonded to the step-shaped structure, and the reinforcing ribs are arranged on the surface of the inner concave portion. Supporting protrusions which are not in cont