The invention relates to a glass breaking device which comprises a glass bearing unit, a glass breaking unit and a control unit, wherein the glass bearing unit is used for bearing the glass; the glass breaking unit is arranged above the glass and is used for breaking the glass; and the control unit is used for controlling the glass breaking unit to move to the direction close to or far away from the glass. The glass breaking device disclosed by the invention has the beneficial effects that automatic control of glass breaking is realized, the manual labor is saved, and the working efficiency is improved.