The invention provides an array pressure sensing device, which is suitable for multi-point touch sensing and pressure quantization identification. The array pressure sensing device comprises a plurality of first axes, a plurality of second axes, a plurality of piezoresistive units, a third axis, a plurality of standard resistors and a control unit, wherein the second axes are in staggered arrangement with the first axes, and one piezoresistive unit is arranged between staggered positions of each first axis and each second axis; and the third axis is in staggered arrangement with the first axes, and one standard resistor is arranged between staggered positions of each first axis and the third axis. The invention also provides a pressure identification method realized by the array pressure sensing device. The pressure identification method is realized by a scanning driving flow of the control unit, and a pressure quantization gray scale identification method for a linear piezoresistive system is provided.