The invention discloses a device used for glass breaking. The device comprises a shell with a feeding opening and a discharging opening and further comprises counter-attack plates, lining plates, a rotor, springs, guide rods, a supporting base, drive discs, drive rods, breaking pressing plates and drive guide columns; and the guide rods are fixedly connected to the bottom end of the shell, the guide rods are movably inserted on the supporting base, the guide rods are sleeved with the springs, one end abuts against the supporting base, and the other end abuts against the shell. The counter-attack plates are fixed to the inner cavity wall of the shell, the lining plates are fixed to the counter-attack plates, and the rotor is rotatably arranged in the shell; two drive discs are symmetrically and rotatably arranged on the outer side wall of the shell, the two crushing pressing plates are arranged in an inner cavity of the shell, one end of each drive guide column is fixedly connected to the corresponding crushing pressing plate, the other ends of the drive guide columns are inserted on the side wall of the shell, one end of each drive rod is hinged to the corresponding drive disc, and the other end of each drive rod is hinged to the corresponding crushing pressing plates; and the device facilitates manufacturing, the damping effect is good, stability is good, the rotor is simple in structure, the construction cost is low, and the breaking efficiency is high.