Abstract: A cooking appliance may include a casing having a cavity and an upper space, a door that opens and closes the cavity. A panel may be disposed at a front of the casing with a height different from a height of the door. A hinge may connect the casing and the panel to each other while located therebetween. A wire cover may cover a wire harness that extends from the panel into the upper space. The wire cover may be coupled to the hinge to protrude from and retract into the upper space together with the hinge. As described above, the wire harness may be covered with the wire cover, so that outward exposure of the wire harness is prevented.