An electromagnetic valve system for carrying out a compressed air supply to and evacuation from a plurality of air chambers of massage instruments of a pneumatic massage device includes a plurality of first electromagnetic valves each to be connected to a corresponding one of the air chambers; a second electromagnetic valve including a first aperture which communicates with external air; and a plurality of first check valves each within a header in an intermediate location between the second electromagnetic valve and a corresponding one of the air chambers with a connection tube therebetween, the first check valves allowing air to pass from the air chambers toward the second electromagnetic valve only when air pressure on a second electromagnetic valve side is lower than air pressure on an air chamber side.