The present invention relates to a double-faced adhesive tape dispenser which does not only include automatic drawing means and cutting means to enhance the convenience of users but also includes guide means to increase the efficiency in using a double-faced adhesive tape. The tape dispenser of the present invention comprises a case body having a receptor to receive an adhesive tape therein; a cover; a connecting means; a locking means; a drawing means including a trigger protruded through an opening of the case body, and a pair of drums in contact with a bottom surface of the adhesive tape to draw out the adhesive tape; a cutting means including an operating button, a lever and a cutter to cut the adhesive tape; and a guide means to guide withdrawal of the adhesive tape in the case body.