PURPOSE: To provide a solenoid valve that can be made compact and lightweight while improving vibration resistance by forming a moving core into a spherical body made of magnetic material.

CONSTITUTION: In a solenoid valve, a valve hole part 11 protruding downward is provided at the lower face of the passage 1 of a resin body 5, and a spherical moving core 8 formed of magnetic material is disposed in the vertically movable state in a center hole 5a below the valve hole part 11. A pipe like fixed core 12 is provided with a spherical valve port part 16 at the upper end part.