To provide a heating warmer for tableware which enables easy use thereof and application thereof for various tableware without requiring washing after the use with a simple structure by a method wherein a heat storage matter of the heating warmer for the tableware with a cooked food thereon is heated simply by a microwave over and put under the tableware to warm the cooked food on the tableware by the quantity of heat of the heat storage matter heated for preventing quickly cooling of cooked foods.

This heating warmer 1 for tableware comprises a liquid 2 as dielectric substance for storing heat, a cover means 3 which totally closes the liquid 2 to be wrapped and gets the tableware 10 put thereon to heat and warm it and a heat insulating means 4 included at a lower part of the cover means 3 to prevent the radiation of heat at the lower part of the cover means 3.