At present, the steering pump for automobiles is mostly a double-acting vane steering pump, which is mainly composed of an ordinary double-acting vane pump, a flow control valve and a pressure safety valve; the double-acting vane pump provides high-pressure oil, and the flow control valve ensures that the steering pump outputs the flow rate suitable for the needs of the whole vehicle, and the pressure safety valve controls the maximum output pressure of the steering pump, and should also be equipped with a pressure switch for the gasoline engine with small engine power.