To provide a heating cooker which is simply constituted with a small number of parts, is excellent in mass productivity, hardly generates malfunctioning, breakage or the like, can surely and firmly fix an attachable/detachable handle only by straightly inserting the ear part of a cooker body, does not generate the shaking of the handle, is excellent in fixing stability, safety and durability, can easily remove the handle with a simple operation, and is excellent in attaching/detaching workability and handling property.

The cooker body 2 has a fitting part formed in the ear part 3. The attachable/detachable handle 10 has (a) an insertion part into which the ear part 3 is inserted and a support member storing part 14 formed in the lower part of the insertion part. The cooker body 2 is provided with a mounting part body 12 formed or arranged on one end of the handle 11, and a support member 17 having (b) an elastic support part 20 which is arranged in the support member storing part of the mounting part body 12 and energizes the ear part upward, an engaging part 20a which is formed on the tip side of the elastic support part 20 and engages with the fitting part of the ear part, and an operation part 21 extending to the tip side of the elastic support part 20.