To provide a device and a method of supplying parts capable of securely separating parts to be easily intertwined with each other such as a coil spring one by one and improved in miniaturization.

This parts supplying device is provided with a parts case 1 for housing plural coil springs 2, nozzles 3, 4 provided inside of the parts case 1 and for injecting the compressed air to the coil springs 2 so as to blow up the coil springs 2, a rotary shaft 7 provided at a side surface of the inner peripheral part of the parts case 1 and extended in the predetermined direction and formed with a screw 7a in the peripheral part thereof, and a fixed shaft 12 provided adjacent to the rotary shaft 7 and extended in the same direction with the rotary shaft 7 and forming a V-shaped groove 13 between the rotary shaft 7.