The invention relates to a ball valve type oil reservoir protective valve. The valve is characterized by comprising an upper movable tubular column module, a salvage releasing module, a ball valve stirring module, a connecting pipe, a ball sleeve, a lower spacing ring and a ball valve module, wherein the upper movable tubular column module is connected with the salvage releasing module; the lowerpart of the upper movable tubular column module is connected with the ball valve stirring module; the ball sleeve is arranged in the ball valve stirring module, and is provided with the ball valve module; and the lower spacing ring is sleeved on the lower part of the ball sleeve. The ball valve type oil reservoir protective valve has the advantages that a switch of the oil reservoir protective valve can be controlled only by lifting or releasing the production tubular column which is connected with the upper movable tubular column module without removing the protective valve in a well workover operation, so that both oil well leakage and oil well blowout can be prevented, and the oil reservoir and ocean environment can be protected.