Disclosed herein are a method for establishing a remote work environment for ensuring the security of a user terminal for remote work and an apparatus using the method. The method, performed by the apparatus, includes acquiring media image creation information from a user; creating a certificate for VPN access based on the media image creation information and creating a media image using the media image creation information and the certificate for VPN access; and providing the media image to the user such that the user is able to create a medium for remote work. The user terminal for remote work is booted through the medium for remote work, thereby configuring a runtime environment for remote work in which security is ensured.