The utility model discloses a portable fixed dual -purpose ultra -thin broken glass device, including atress board, broken glass awl, limiting plate, connection gasket, viscose layer and viscose layer protection film, the lower terminal surface of atress board and the up end of limiting plate pass through connection gasket fixed connection, leave the clearance between the lower terminal surface of atress board and the up end of limiting plate, the stroke space that bored as broken glass in the clearance, atress board and limiting plate and between the two the gross thickness in clearance be not more than 2cm, the limiting plate is equipped with the through -hole, and the through -hole aperture is suitable with broken glass awl diameter, the lower terminal surface at the atress board is fixed on the top of broken glass awl, in the through -hole of limiting plate is inserted to the lower part of broken glass awl, the viscose layer sets up in the lower terminal surface of limiting plate, cover viscose layer protection film outside the viscose layer. Compared with the prior art, the utility model discloses the principle is clear, rational in infrastructure, reliably spend high, small and exquisite portable, take dual -purpose, convenient to use, low cost admittedly, have wide application market and developing prospect.