A cooking appliance for controlling a wireless power transmission device for automatic cooking of contents in a cooking vessel, including a plurality of first temperature sensors arranged in an internal space of the cooking appliance, the internal space being configured to accommodate the cooking vessel, a communication interface configured to transmit information to the wireless power transmission device, and at least one processor configured to obtain temperature data regarding the cooking vessel that is measured by the plurality of first temperature sensors as the cooking vessel is accommodated in the internal space, based on the temperature data regarding the cooking vessel and recipe information of a dish selected by a user, determine a power level value of the wireless power transmission device, and transmit power control information, including the power level value, to the wireless power transmission device through the communication interface.