An induction cooking system, comprising: a top plate (B, 21) adapted for allowing penetration of light; a main heating coil heating a heated object placed on the top plate (B, 21) by generating an induction field; a first sub heating coil and a second sub heating coil being disposed outside the main heating coil, the sub heating coils being adapted for heating the heated object placed on the top plate (B, 21); inverter circuits adapted for supplying high-frequency current to each of the main heating coil and the first and second sub heating coils; a heating control unit adapted for controlling output of each of the inverter circuits; a first individual light emitting unit adapted for performing a "first display" for specifying the first sub heating coil at a vicinity of the first sub heating coil when the main heating coil is performing heating operation; a second individual light emitting unit adapted for performing a "first display" for specifying the second sub heating coil at a vicinity of the second sub heating coil when the main heating coil is performing heating operation; a light emission control unit adapted for controlling emitting and lighting of the first and second individual light emitting units; and a placement-of-heated-object determination unit adapted for determining whether a same single heated object is placed above the main heating coil and the sub heating coils, wherein in a state in which the placement-of-heated-object determination unit has determined that the same single heated object is placed above the main heating coil and either one of the first and second sub heating coils, the heating control unit is adapted for making the main heating coil and the either one of the first and second sub heating coils perform a cooperative heating operation and the light emission control unit is adapted for making the either one of the first and second individual light emitting units corresponding to the either one of the first and second sub heating coils that is performing the cooperative heating operation into "second display" form different from that of the first display. a top plate (B, 21) adapted for allowing penetration of light; a main heating coil heating a heated object placed on the top plate (B, 21) by generating an induction field; a first sub heating coil and a second sub heating coil being disposed outside the main heating coil, the sub heating coils being adapted for heating the heated object placed on the top plate (B, 21); inverter circuits adapted for supplying high-frequency current to each of the main heating coil and the first and second sub heating coils; a heating control unit adapted for controlling output of each of the inverter circuits; a first individual light emitting unit adapted for performing a "first display" for specifying the first sub heating coil at a vicinity of the first sub heating coil when the main heating coil is performing heating operation; a second individual light emitting unit adapted for performing a "first display" for specifying the second sub heating coil at a vicinity of the second sub heating coil when the main heating coil is performing heating operation; a light emission control unit adapted for controlling emitting and lighting of the first and second individual light emitting units; and a placement-of-heated-object determination unit adapted for determining whether a same single heated object is placed above the main heating coil and the sub heating coils, wherein in a state in which the placement-of-heated-object determination unit has determined that the same single heated object is placed above the main heating coil and either one of the first and second sub heating coils, the heating control unit is adapted for making the main heating coil and the either one of the first and second sub heating coils perform a cooperative heating operation and the light emission control unit is adapted for making the either one of the first and second individual light emitting units corresponding to the either one of the first and second sub heating coils that is performing the cooperative heating operation into "second display" form different from that of the first display.