A pressure-sensitive detection apparatus, comprising: a pressure sensor array, the apparatus is characterized in that: each row of the pressure sensor array comprises M pressure sensors (3111, 3112,..., 3822), the pressure sensors are of a strain-type sensor, the M pressure sensors constitute one half-bridge circuit (3100, 3200,...,3800), the half-bridge circuit comprises a first pressure sensor unit (3110, 3210,...,3810) and a second pressure sensor unit (3120, 3220,...,3820), a first terminal of the first pressure sensor unit is connected to a power supply, a second terminal of the first pressure sensor unit is connected to a first terminal of the second pressure sensor unit, a second terminal of the second pressure sensor unit is connected to the ground, the second terminal of the first pressure sensor unit is an output terminal of the half-bridge circuit, the first pressure sensor unit and the second pressure sensor unit each comprise one or more pressure sensors, and M is an integer greater than 2, wherein the pressure sensor array is located in a touch display screen, and pressure of a touch input signal on the touch display screen is transferred to the pressure sensor array; and when there is a touch input signal on the touch display screen, a first half-bridge circuit and a second half-bridge circuit in the pressure sensor array that are corresponding to a touch location of the touch input signal output signals, wherein a deformation amount generated when pressure is applied to a first pressure sensor unit in the first half-bridge circuit is less than a deformation amount generated when the pressure is applied to a second pressure sensor unit in the first half-bridge circuit, and a deformation amount generated when the pressure is applied to a first pressure sensor unit in the second half-bridge circuit is greater than a deformation amount generated when the pressure is applied to a second pressure sensor unit in the second half-bridge circuit. each row of the pressure sensor array comprises M pressure sensors (3111, 3112,..., 3822), the pressure sensors are of a strain-type sensor, the M pressure sensors constitute one half-bridge circuit (3100, 3200,...,3800), the half-bridge circuit comprises a first pressure sensor unit (3110, 3210,...,3810) and a second pressure sensor unit (3120, 3220,...,3820), a first terminal of the first pressure sensor unit is connected to a power supply, a second terminal of the first pressure sensor unit is connected to a first terminal of the second pressure sensor unit, a second terminal of the second pressure sensor unit is connected to the ground, the second terminal of the first pressure sensor unit is an output terminal of the half-bridge circuit, the first pressure sensor unit and the second pressure sensor unit each comprise one or more pressure sensors, and M is an integer greater than 2, wherein the pressure sensor array is located in a touch display screen, and pressure of a touch input signal on the touch display screen is transferred to the pressure sensor array; and when there is a touch input signal on the touch display screen, a first half-bridge circuit and a second half-bridge circuit in the pressure sensor array that are corresponding to a touch location of the touch input signal output signals, wherein a deformation amount generated when pressure is applied to a first pressure sensor unit in the first half-bridge circuit is less than a deformation amount generated when the pressure is applied to a second pressure sensor unit in the first half-bridge circuit, and a deformation amount generated when the pressure is applied to a first pressure sensor unit in the second half-bridge circuit is greater than a deformation amount generated when the pressure is applied to a second pressure sensor unit in the second half-bridge circuit.