To provide a method of manufacturing a gas displacement package that can cope with packages with various sizes and shapes, and a sealing packaging container, and a package. A method of manufacturing a gas displacement package and a sealing packaging container, and a package, wherein a packaging container comprising a receptacle and a lid of plastic is used, ridges of the receptacle and the lid overlapped each other, the ridges are sealed with a band tape, and the container is gas displaced through a hole of the container and is sealed.