A packaging system according to an aspect is a packaging system formed by connecting an external server to a plurality of packaging apparatuses via a network. The external server stores control parameters for the packaging apparatuses to package an article to be packaged in an optimal state. The packaging apparatus communicates with the external server, downloads necessary control parameters, and controls a packaging operation by using the downloaded control parameters. Accordingly, a setting operation performed in each of the packaging apparatuses can be significantly reduced.