Abstract: A synthetic resin-made container is a synthetic resin-made container that has an outer layer body and an inner layer body separably laminated on an inner surface of the outer layer body and is formed by stretch blow molding, and includes: a tubular mouth portion; a barrel portion connected to and located below the mouth portion; and a bottom portion closing a lower end of the barrel portion, wherein the outer layer body contains polyethylene terephthalate, the inner layer body contains polyethylene terephthalate, a laminate containing polyethylene terephthalate, or a blend containing polyethylene terephthalate, and has a vapor-deposited film having a gas barrier property on an inner surface thereof, and a rib that prevents the inner layer body from peeling away from the outer layer body when forming the vapor-deposited film is formed in at least one of a lower part of the barrel portion and the bottom portion.