The invention discloses low-temperature sintered zinc oxide pressure-sensitive ceramic and a preparation method thereof. The method comprises steps: mixing, ball milling, and drying zinc oxide, a sintering aid B4C and a modification additive to obtain a powder, wherein the modification additive contains Bi2O3, Sb2O3, Co3O4, an oxide of manganese and Ni2O3; adding PVA glue into the obtained powder,granulating, sieving, tabletting and discharging glue; sintering for 2 to 3h at 900 to 950 DEG C to obtain a black and compact pressure-sensitive ceramic chip; and respectively coating the two surfaces of the pressure-sensitive ceramic chip with silver paste, heating to 500-550 DEG C, carrying out heat preservation for 20-30 minutes, and cooling to obtain the pressure-sensitive ceramic with electrodes printed on the two surfaces. According to the preparation method, B4C is adopted as a sintering aid, the sintering temperature is reduced to 950 DEG C or below from traditional 1100-1200 DEG C,meanwhile, it is guaranteed that the pressure-sensitive ceramic has good comprehensive electrical properties, and the whole process is energy-saving, consumption-reducing, environmentally friendly, simple, convenient and easy to implement and capable of being industrially popularized.