In order to provide an induction heating cooker capable of preventing a phenomenon that a drive circuit is stopped or a high-frequency current is reduced because boiling over is erroneously determined due to a fluctuation in electrostatic capacitance during cooking, the induction heating cooker includes an inverter for supplying a current to a heating coil, a control portion for driving the inverter, an electrostatic capacitance detecting portion for measuring electrostatic capacitance of a plurality of electrodes, and a boiling over detecting portion. The boiling over detecting portion reduces an output of the inverter from a first set value to a second set value after a sensed value of the electrostatic capacitance has reached a range of a first variation (ΔV1) or more, and returns the output of the inverter to the first set value when a sensed value during a boiling over establishing period (T2) performed after the sensed value has reached the first variation or more falls within a range of a second variation (ΔV2).