The invention relates to a control circuit for an induction cooker and the induction cooker using the control circuit. The induction cooker comprises an induction coil and a switch element, wherein the induction coil is coupled between a supply voltage and a first end of the switch element, and a second end of the switch element is coupled with a public voltage. The control circuit comprises a first comparator, a second comparator and a pulse generating circuit, wherein the first comparator receives voltages at the two ends of the induction coil to output trigger signals, and the second comparator receives voltage reference and voltage at the first end of the switch element. When the voltage at the first end of the switch element is larger than the reference voltage, the second comparatorleads the signals to be attenuated. When the trigger signals are enabled, the pulse generating circuit can output pulse to control the switch element. When the fading signals are enabled, the pulse generating circuit reduces the width of pulse.