PROBLEM TO BE SOLVED: To attain a colorless and transparent sterilized vial having high bactericidal properties.SOLUTION: A method for sterilizing a vial 5 includes the steps of: placing the vial 5, an elastic lid 6 and a rigid lid 7 each in an inner part 10 of a bag 4 (S1) hermetically closing the bag 4 (S2) and supplying sterile gas to the inner part 10 of the bag 4 to sterilize the vial 5, the elastic lid 6 and the rigid lid 7 (S4). A sterilized vial pack 1 includes: the bag 4 the sterilized vial 5 set in the inner part 10 of the bag 4 the sterilized elastic lid 6 set in the inner part 10 of the bag 4 the sterilized rigid lid 7 set in the inner part 10 of the bag 4 and an enclosure part 11 through which the sterile gas performing sterilization of the vial 5, the elastic lid 6 and the rigid lid 7 can be encapsulated in the inner part 10 of the bag 4.
