Pen capable of capacitive touch sensing

PURPOSE: A writing devices is provided to influence electrical characteristic change in a touch screen panel and supply a touch feeling or pressure to a user. CONSTITUTION: A touch cap(130) includes a cap hole and an electrical material which influences a change of an electrostatic capacity in a touch screen pane and is mounted to end part of a pen body(110). The touch cap is separated totally or partially from an end part of the pen body and is elastically and partially changed in a contact part while contacting the touch screen panel. A conductive unit(140) is formed into one with e pen body neighboring to the body hole.