Glass cutting device

The utility model relates to the field of glass processing devices, in particular to a glass cutting device which comprises an abutting mechanism, a scaleplate, a mounting mechanism, a cutting knife and a limiting mechanism, the abutting mechanism is used for abutting against the edge of glass, the scaleplate is detachably connected to the abutting mechanism and is perpendicular to the abutting mechanism, and the scaleplate is parallel to the glass; the mounting mechanism is slidably connected to the scale and fixed, the cutting knife used for cutting glass is connected to the mounting mechanism, the limiting mechanism comprises a positioning rod and two limiting assemblies, the positioning rod is parallel to the abutting mechanism and slidably connected with the mounting mechanism, the number of the limiting assemblies is two, and the two limiting assemblies are connected to the positioning rod. The two limiting assemblies are used for abutting against the two opposite side edges of the glass. The position o