A microwave oven cooking food using a bar code, and a method controlling same. The microwave oven comprises a bar code scanner for obtaining bar code data from the bar code attached to the food; and a controller for obtaining cooking data corresponding to the microwave oven from the bar code data, setting cooking conditions based on the obtained cooking data, and performing the cooking of the food according to the set cooking conditions. Accordingly, it is possible to develop cooking sets regardless of the manufacturing times of foods, and food producers can put foods applied compatibly to plural cooking sets on the market and easily control inventory.