PROBLEM TO BE SOLVED: To provide a cap sterilization device which can unfailingly sterilize caps even when a transport speed of the caps is increased to a high speed.SOLUTION: A cap sterilization device 50 includes: a first introduction chamber 51 into which caps 33 are introduced a second introduction chamber 52 to which hot air is sent and a sterilant spray chamber 53 which sprays a sterilant to the caps 33 supplied from the second introduction chamber 52. The first introduction chamber 51, the second introduction chamber 52, and the sterilant spray chamber 53 are arranged along a transport direction of the caps 33 in a written order. A partition wall 61 separates the first introduction chamber 51 from the second introduction chamber 52.SELECTED DRAWING: Figure 2
