A touch inputting device controlling apparatus, comprising: a touch inputting device including a plurality of conductor lines disposed in each of a first direction and a second direction and a pressure-sensitive resistive element provided at a location at which two of the conductor lines cross with each other; a driving unit configured to successively select one drive line from among a plurality of drive lines provided as the conductor lines disposed in the first direction, and apply a driving voltage to the selected drive line; a voltage detection unit configured to successively select one sensing line from among a plurality of sensing lines provided as the conductor lines disposed in the second direction, and detect an output voltage of the selected sensing line, wherein a pull-down resistor (Rp) is connected to each sensing line; and an arithmetic operation unit configured to determine a resistance value of the pressure-sensitive resistive element provided at the location at which the selected drive line and the selected sensing line cross with each other based on the driving voltage and the output voltage, wherein: the driving unit applies a bias voltage equal to or lower than the driving voltage to the other drive lines than the selected drive line, wherein the bias voltage is not equal to zero, and the voltage detection unit carries out, when the voltage detection unit detects an output voltage equal to or lower than the bias voltage, a cancellation process of discarding the detection result. a touch inputting device including a plurality of conductor lines disposed in each of a first direction and a second direction and a pressure-sensitive resistive element provided at a location at which two of the conductor lines cross with each other; a driving unit configured to successively select one drive line from among a plurality of drive lines provided as the conductor lines disposed in the first direction, and apply a driving voltage to the selected drive line; a voltage detection unit configured to successively select one sensing line from among a plurality of sensing lines provided as the conductor lines disposed in the second direction, and detect an output voltage of the selected sensing line, wherein a pull-down resistor (Rp) is connected to each sensing line; and an arithmetic operation unit configured to determine a resistance value of the pressure-sensitive resistive element provided at the location at which the selected drive line and the selected sensing line cross with each other based on the driving voltage and the output voltage, wherein: the driving unit applies a bias voltage equal to or lower than the driving voltage to the other drive lines than the selected drive line, wherein the bias voltage is not equal to zero, and the voltage detection unit carries out, when the voltage detection unit detects an output voltage equal to or lower than the bias voltage, a cancellation process of discarding the detection result. the driving unit applies a bias voltage equal to or lower than the driving voltage to the other drive lines than the selected drive line, wherein the bias voltage is not equal to zero, and the voltage detection unit carries out, when the voltage detection unit detects an output voltage equal to or lower than the bias voltage, a cancellation process of discarding the detection result.