pressure adjusting mechanism 7 and a control section 8 the compressed air source 6 is for example a compressor the control section 8 is provided for controlling the compressed air distributing device and the compressed air source 6 the pressure adjusting mechanism 7 is connected to an air supplying pipe which connects the compressed air source 6 to the header 1 of the compressed air distributing device the output ports 21 b of the switching valves 2 are connected to the air inlet port of the body 5 of the massage apparatus the exhaust ports 23 b of the switching valves 2 are connected to an exhaust pipe which communicates with the outside of the body of the massage apparatus the solenoid sections 3 and compressed air source 6 are electrically connected to the control section 8 it will be described how the compressed air distributing device according to the invention operates in the pneumatic apparatus shown in fig4 as shown in fig4 air hoses 12 are connected at one end to the body 5 by an adapter 13 the adapter 13 connects the outlet ports 21 b of the switching valves 2 to the airtight chambers 11 provided in two massage bodies 10 respectively the air houses 12 are connected at the other.