Abstract: The present invention relates to a baton for self-protection is composed of a cylindrical handle, a locking piece, a switch, a first telescoping rod, a second telescoping rod, and a spring. The handle is covered by a grip. The locking piece is coupled to the center portion of a locking piece fixing section inserted into one end of the handle and has a locking projection provided in predetermined positions of both ends thereof. The switch is mounted in the rear side of the locking piece fixing section. The first telescoping rod has a widened portion and tapered portion formed in both ends thereof so as to be telescoped inside the handle. The second telescoping rod is housed in the first telescoping rod, and a step portion of the second telescoping rod at one end thereof is closely coupled to the locking projection of the locking piece. The spring is mounted in the handle so as to elastically support the first and second telescoping rods.