A cooking appliance having a main body formed with a cavity, and a door opening and closing the cavity, wherein the door includes a display module disposed on the front of the door, a cooling flow path unit disposed behind the display module and having a flow path through which air for cooling flows formed therein, a shielding unit disposed behind the cooling flow path unit and configured to shield electromagnetic waves generated in the main body, and a camera configured to capture at least one place among the front or a lower portion of the door, or the cavity.