Rack for cook and cooking appliance

PURPOSE: A cooking rack, which supports various types and various sizes of foods by one rack, and a cooker are provided to safely support the food with fixed volume. CONSTITUTION: A cooking rack comprises a first part(600), a second part(700) and a rod(800). A plurality of frames(610,620) which has a virtual area is formed in two dimension. The second part is offered to the first part. A plurality of frames has the different crustaceous area. The rod interlinks the first part and the second part.