An induction cooking system, comprising: a top plate for placing a heated object including a pan for holding an object to be cooked; an annular main heating coil disposed below the top plate; four or more sub heating coils (SC1 to SC4) adjoinedly disposed on both sides of the main heating coil, and each having a flattened shape with a width smaller than a radius of the main heating coil; inverter circuits (MIV, SIV1 to SIV4) supplying induction heating power to the main heating coil and the sub heating coils (SC1 to SC4), respectively; a static capacitance detection means disposing a plurality of electrodes at outside positions of the respective sub heating coils (SC1 to SC4) under the top plate; a control unit controlling outputs of the inverter circuits (MIV, SIV1 to SIV4); and an operating unit commanding a cooking operation to the control unit, wherein the sub heating coils (SC1 to SC4) are divided into a first group that includes half or more of the sub heating coils but not all that are adjacent each other and a second group that includes the rest of the sub heating coils, the control unit supplies induction heating power from the inverter circuits (SIV1 to SIV4) to the sub heating coils of the first group and the sub heating coils of the second group alternately or with a predetermined interval and stops driving of or reduces outputs of the inverter circuits (SIV1 to SIV4) when the static capacitance detection means detects a change in static capacitance, and the electrodes include a first electrode that is disposed on the outer periphery of the sub heating coils of the first group and below and include a second electrode that is disposed on the outer periphery of the sub heating coils of the second group and below. a top plate for placing a heated object including a pan for holding an object to be cooked; an annular main heating coil disposed below the top plate; four or more sub heating coils (SC1 to SC4) adjoinedly disposed on both sides of the main heating coil, and each having a flattened shape with a width smaller than a radius of the main heating coil; inverter circuits (MIV, SIV1 to SIV4) supplying induction heating power to the main heating coil and the sub heating coils (SC1 to SC4), respectively; a static capacitance detection means disposing a plurality of electrodes at outside positions of the respective sub heating coils (SC1 to SC4) under the top plate; a control unit controlling outputs of the inverter circuits (MIV, SIV1 to SIV4); and an operating unit commanding a cooking operation to the control unit, wherein the sub heating coils (SC1 to SC4) are divided into a first group that includes half or more of the sub heating coils but not all that are adjacent each other and a second group that includes the rest of the sub heating coils, the control unit supplies induction heating power from the inverter circuits (SIV1 to SIV4) to the sub heating coils of the first group and the sub heating coils of the second group alternately or with a predetermined interval and stops driving of or reduces outputs of the inverter circuits (SIV1 to SIV4) when the static capacitance detection means detects a change in static capacitance, and the electrodes include a first electrode that is disposed on the outer periphery of the sub heating coils of the first group and below and include a second electrode that is disposed on the outer periphery of the sub heating coils of the second group and below.