DOOR STOPPER

The present invention relates to a door stopper, which rotates based on a door axis and is installed to maintain the opened or closed state of a door, including a stopper body unit, which is fixed to an installation surface; and a door attachment unit, which is installed to prevent from being separated from the stopper body thanks to one end of the door attachment unit, which is mounted to come out and go in, and is installed to be attached to and detached from the door with the other end of the front when the door is contacted and pressed or when the contact or the pressure is released. Therefore, there is no need for rotating and operating the stopper in an attempt to fix the door and for preparing an installation structure of regular grooves in the door in advance, thereby facilitating the manufacture and user of the door stopper.