An induction heating apparatus, comprising: a first working coil; a first inverter circuit driven at a first driving frequency corresponding to a first required power value of the first working coil and configured to supply the first working coil with current; a second working coil; a second inverter circuit driven at a second driving frequency corresponding to a second required power value of the second working coil and configured to supply the second working coil with current; and a controller configured to determine a third driving frequency corresponding to a third required power value when the required power value of the first working coil or the second working coil is changed to the third required power value, to calculate a difference value between the driving frequency of the working coil, the required power value of which is not changed, and the third driving frequency, to change an operation mode or a power control mode of the first inverter circuit or the second inverter circuit when the difference value is included in a predetermined first reference range, and to change an output power value of the working coil, the required power value of which is changed, to the third required power value; wherein the first inverter circuit is a full bridge circuit, and characterized in that when a resonance frequency of the first working coil is less than a resonance frequency of the second working coil and the difference value is included in the predetermined first reference range, the controller is configured to change the operation mode of the first inverter circuit to a half bridge mode and to change a driving frequency of the first inverter circuit to a fourth driving frequency corresponding to the third required power value. a first working coil; a first inverter circuit driven at a first driving frequency corresponding to a first required power value of the first working coil and configured to supply the first working coil with current; a second working coil; a second inverter circuit driven at a second driving frequency corresponding to a second required power value of the second working coil and configured to supply the second working coil with current; and a controller configured to determine a third driving frequency corresponding to a third required power value when the required power value of the first working coil or the second working coil is changed to the third required power value, to calculate a difference value between the driving frequency of the working coil, the required power value of which is not changed, and the third driving frequency, to change an operation mode or a power control mode of the first inverter circuit or the second inverter circuit when the difference value is included in a predetermined first reference range, and to change an output power value of the working coil, the required power value of which is changed, to the third required power value; wherein the first inverter circuit is a full bridge circuit, and characterized in that when a resonance frequency of the first working coil is less than a resonance frequency of the second working coil and the difference value is included in the predetermined first reference range, the controller is configured to change the operation mode of the first inverter circuit to a half bridge mode and to change a driving frequency of the first inverter circuit to a fourth driving frequency corresponding to the third required power value. to determine a third driving frequency corresponding to a third required power value when the required power value of the first working coil or the second working coil is changed to the third required power value, to calculate a difference value between the driving frequency of the working coil, the required power value of which is not changed, and the third driving frequency, to change an operation mode or a power control mode of the first inverter circuit or the second inverter circuit when the difference value is included in a predetermined first reference range, and to change an output power value of the working coil, the required power value of which is changed, to the third required power value; wherein the first inverter circuit is a full bridge circuit, and characterized in that when a resonance frequency of the first working coil is less than a resonance frequency of the second working coil and the difference value is included in the predetermined first reference range, the controller is configured to change the operation mode of the first inverter circuit to a half bridge mode and to change a driving frequency of the first inverter circuit to a fourth driving frequency corresponding to the third required power value.