PURPOSE: To obtain an electric rice cooker which is thin, light and excellent in the heat efficiency and further which can be uniformly heated.

CONSTITUTION: An induction heating coil 6 coursely wound from the near position of the central part to the outside of the lower projection area A of a cooking pan 7 is arranged on a pan base 2 provided in an outer case 1. And an induction heating coil 6 is arranged in a groove 4 formed on the pan base 2 made of an insulation material with a distance from a partition wall 5. And a variable frequency type controller 36 is provided in a supplying means 10 of electric power as an induction mean. In this way, a thin, light, and heat- efficient electric rice cooker can be obtained to heat water uniformly.