To improve efficiency by thoroughly omitting loss time in a drying treatment device capable of being suitably used for drying a treated object after plating and coloring.

This drying treatment device has a base 10, a swivel base 11 disposed on the base 10, a plurality of drying machines 12 disposed on the swivel base 11 at prescribed intervals in the circumferential direction, and a swivel driving portion 13 for intermittently swiveling the swivel base 11 while stopping each of the drying machines 12 oppositely to work transferring portions 7.