A space context copy/paste method and system using ontology, and a space copier are disclosed, in which various contexts in a space are sensed using various detection means under a ubiquitous environment and are stored in a database by time, and a context of a specific space to be copied or pasted by a user is stored in a space file using a space copier, so that a user is able to paste the stored space file into a specific space using various output means.