The utility model relates to an easily-replaced return pressure stop valve, and belongs to the technical field of valves. The easily-replaced return pressure stop valve is composed of a valve base, a cone valve, a valve rod, a spring and a valve cover, wherein the valve base, the cone valve, the valve rod, the spring and the valve cover are coaxially arranged. A through hole is formed in the middle of the valve base; the cross section of the cone valve is an isosceles trapezoid, the width of the upper bottom of the isosceles trapezoid is larger than the diameter of the through hole of the valve base, and the width of the lower bottom is smaller than the diameter of the through hole of the valve base; the valve rod is connected with the cone valve; the valve rod is sleeved with the spring; a through hole for the valve rod to penetrate through is formed in the top of the valve cover, the bottom of the valve cover is in threaded connection with the outer surface of the valve base, and an oil outlet hole is formed in the upper half portion of the lateral wall of the valve cover; in the forward flow condition, the cone valve is separated from the through hole of the valve base; in the backward flow condition, the cone valve is in contact with the through hole of the valve base. The easily-replaced return pressure stop valve is tightly closed, the service life is long, and replacement is easy; meanwhile, the anti-theft effect can be achieved, and environmental pollution accidents like oil leakage caused by polish rod breaking can be further avoided.