A solenoid valve includes an inlet port, an outlet port, a seal member arranged in a channel of a fluid between the inlet port and the outlet port and having an opening, a valve body configured to open and close the opening of the seal member, a first spring configured to bias the valve body against the seal member, electromagnetic driving device, including an umbrella-shaped movable core configured to move the valve body and an electromagnetic coil configured to attract the umbrella-shaped movable core, for operating so as to open the opening of the seal member by attracting the umbrella-shaped movable core, and a second spring configured to exert a spring force in a direction opposite to the first spring, wherein the second spring is provided with rotation preventing device.