An induction heating and wireless power transferring device, comprising: a first working coil; an inverter unit that is configured to apply resonant current to the first working coil by performing a switching operation; a first detection unit that is connected to the first working coil and that is configured to detect the resonant current applied to the first working coil; and a control unit that is configured to determine whether or not a target object is located on the first working coil by controlling respective operations of the inverter unit and the first detection unit or that is configured to control an output of the first working coil; characterized in that the first detection unit includes: a current transformer that is connected to the first working coil and that is configured to convert a magnitude of the resonant current applied to the first working coil; a first resistor that is connected to the current transformer and that is configured to have a first resistance value; a second resistor that is connected to the first resistor and that is configured to have a second resistance value less than the first resistance value; and a control switch that is connected to the second resistor and that is configured to turn on or off the second resistor, the control switch whose operation is controlled by the control unit. a first working coil; an inverter unit that is configured to apply resonant current to the first working coil by performing a switching operation; a first detection unit that is connected to the first working coil and that is configured to detect the resonant current applied to the first working coil; and a control unit that is configured to determine whether or not a target object is located on the first working coil by controlling respective operations of the inverter unit and the first detection unit or that is configured to control an output of the first working coil; characterized in that the first detection unit includes: a current transformer that is connected to the first working coil and that is configured to convert a magnitude of the resonant current applied to the first working coil; a first resistor that is connected to the current transformer and that is configured to have a first resistance value; a second resistor that is connected to the first resistor and that is configured to have a second resistance value less than the first resistance value; and a control switch that is connected to the second resistor and that is configured to turn on or off the second resistor, the control switch whose operation is controlled by the control unit. a current transformer that is connected to the first working coil and that is configured to convert a magnitude of the resonant current applied to the first working coil; a first resistor that is connected to the current transformer and that is configured to have a first resistance value; a second resistor that is connected to the first resistor and that is configured to have a second resistance value less than the first resistance value; and a control switch that is connected to the second resistor and that is configured to turn on or off the second resistor, the control switch whose operation is controlled by the control unit.