A heating cooking apparatus includes a heating cooking chamber and a first air sending unit. The heating cooking chamber includes an accommodation space that accommodates an object to be heated, and a first space that communicates with the accommodation space. The first air sending unit includes a first partitioning member positioned between the first space and a first air sending chamber, a first suction hole portion disposed in the first partitioning member and configured to suction air inside the heating cooking chamber, and a first blow-out hole portion disposed in the first partitioning member and configured to blow air into the heating cooking chamber. The accommodation space is a space that can accommodate the object to be heated and has a predetermined capacity. The first space indicates a space into which the object to be heated is prohibited from entering.