Pneumatic valve position display sensor

The utility model discloses a pneumatic valve position display sensor, which relates to the technical field of oil well field detection equipment and comprises a pressing assembly, an elastic unit, a pressure reducing valve and a supporting assembly. The two ends of the elastic unit abut against the pressing assembly and a diaphragm of the pressure reducing valve respectively. The supporting assembly comprises an adjusting pipe and an adjusting seat, the adjusting pipe is fixedly arranged, the adjusting seat is connected with the adjusting pipe and the pressure reducing valve, the elastic unit and the pressing assembly are located in the supporting assembly, and the end, away from the pressure reducing valve, of the pressing assembly extends out of the adjusting pipe; an air outlet of the pressure reducing valve is connected with a pressure gauge through a hose. According to the utility model, the specific position of the valve core of the hydraulic throttle valve can be read through the pressure gauge under