PURPOSE: A soap slicer is provided, which enables a user to use soap like one-time-use tissue by cutting the outer circumference of the accepted soap tenuously. CONSTITUTION: A soap slicer comprises: a main body(100) in which soap is settled on the cylindrical upper part of the body; a cap(200) which is formed in order to open and close the upper side of the main body and in which an outlet is formed in the upper side and a coupling screw unit corresponding to fastening screw unit is formed in the lower cylinder inner circumference around the outlet; and a cutting blade(300) which is formed in order to tenuously cut the soap.
