The present disclosure provides a cooking appliance that includes a cooking cavity body, in which a cooking cavity is formed; a heating plate, movably mounted in the cooking cavity; and an adjusting device, mounted to the heating plate and used for driving the heating plate to continuously reciprocate in the cooking cavity. According to the technical solution, the heating plate can continuously reciprocate up and down or left and right in the cooking cavity under the action of the adjusting device, and when the cooking appliance is specifically used for heating food, the height of the heating plate can be adjusted according to the category and height of the food to adjust the distance between the heating plate and the bottom wall of the cooking cavity.