A cooking appliance comprises a lid (1), an appliance body and an inner cap (3), the lid (1) being arranged on the appliance body in a manner capable of opening and closing the appliance body, the appliance body comprising a heating structure, and the lid (1) comprising: a lid body (4); a baking assembly (5) arranged below the lid body (4), the lid body (4) being provided with a venting passage (6) through which the inside of the cooking appliance communicates with the exterior, the inner cap (3) being detachably mounted to the lid body (4) and located below the baking assembly (5), a lateral wall of the venting passage (6) being provided with a venting hole; a blocking member (27) slidably arranged in the venting passage (6), the blocking member (27) sliding downwards to a bottom of the venting passage (6) when the inner cap (3) is detached, and the blocking member (27) blocking the venting hole when the blocking member (27) is located at a top or a bottom of the venting passage (6). The cooking appliance solves the problem that electrical components inside the lid (1) of a cooking appliance in the prior art are susceptible to moisture.