Abstract: A method of attaching a hairpiece and a hairpiece attaching element are disclosed. The method has the steps of: providing an anchor around the outer periphery of a hairpiece body and the hairpiece attaching element which includes a core and a cover slidably fitting on the core, the core having a first engagement means engaging the anchor and a second engagement means engaging bundles of a plurality of natural growing hairs growing from the head of a wearer; engaging the anchor with the first engagement means; and then moving the cover so that the bundles of natural growing hairs engage the second engagement means so as to cover the natural growing hairs engaging the core and retain the engagement of the natural growing hairs.