An induction heating device includes a resonance circuit including an exciting coil and a resonance capacitor; a switching unit that turns on and off a high-frequency current flowing through the switching unit; a temperature detector that detects a temperature of the heated body; a power amount detector that detects a power amount sent to the exciting coil; a turned-on time setting unit that sets a turned-on time of the switching unit; a timing generation unit that generates a signal indicating a timing when a voltage between both ends of the switching unit is zero; and a timing setting unit that sets a turned-on timing of the switching unit based on the signal generated by the timing generation unit.