Provided is an induction heat cooking device that completes pre-heating in a short period of time and maintains the preheat temperature. A control unit (8) that constitutes the induction heat cooking device: initiates a preheating mode on a first heat output when preheating/heating mode is selected; signals to the warning unit that preheating is complete when the increase in the infrared sensor output value surpasses a first predetermined increase; and switches into a stand-by mode that heats a cooking vessel with a second heat output, which is weaker than the first heat output. The control unit prohibits the changes to the heating power set during the preheating mode by the user using the heat power setting unit, but permits changes to heating power set during the stand-by mode, and switches into a heating mode that heats the cooking vessel with a third heat output corresponding to the set heating power.
