Résumé dans la langue de publication A rotary atomizing head type coating device capable of preventing spark discharge from occurring around the rotary atomizing head. A rotary shaft (9) is made of insulating material and a rotary atomizing head (11) made of insulating resin material is attached to the front end of the rotary shaft (9). The outer peripheral surface of the rotary atomizing head (11) is formed with an atomizing head semiconductive film (14). And a first restricting ring (15) installed on a motor body (6) is formed with a first arcuate film (16), while a second restricting ring (17) installed in the rotary atomizing head (11) is formed with a second arcuate film (18). Further, the outer peripheral surface of the rotary shaft (9) is formed with a current feed semiconductive film (19) positioned between the arcuate films (16, 18). And a high voltage impressed on an air motor (5) is fed to the paint discharge end edge (12E) of the rotary atomizing head (11) successively through the first arcuate film (16), the current feed semiconductive film (19), the second arcuate film (18), and the atomizing head semiconductive film (14).