The invention discloses a nonlinear cylindrical pressure sensitive resistor and application thereof. The nonlinear cylindrical pressure sensitive resistor is composed of a pressure sensitive resistor ceramic wafer and a non-continuous electrode. Due to doping of a zinc oxide material in the pressure sensitive resistor ceramic wafer, grains of the zinc oxide are refined, the surface density of the pressure sensitive resistor ceramic wafer is increased, the characteristics of the pressure sensitive resistor are improved, and the current-force impact resistance and nonlinear coefficient of the resistor are improved, so that the pressure sensitive resistor has high voltage gradient and beneficial electrical properties, reaches a nanosecond over-voltage response speed and is fast in over-voltage recovery and zero in follow current. The pressure sensitive resistor disclosed by the invention is safe and non-toxic in material and harmless to the human body and environment and can be widely applied to over-voltage protection of power diodes, silicon stacks, medium/low-power silicon controlled rectifiers and the like.