The invention discloses a glass cutting device which comprises a foundation bed. Two supporting rods are parallelly arranged on the foundation bed, the bottom of each supporting rod is fixedly connected to the foundation bed, a cross beam is erected between tops of the supporting rods, the lower surface of the cross beam is opposite to the upper surface of the foundation bed, m+ transmission systems are arranged on the lower surface of the cross beam, bases are arranged in one-to-one correspondence to places right below the m continuous transmission systems, and the bottom of each base is fixedly connected with the foundation bed; a first conveying belt and a second conveying belt are respectively arranged on two sides of the foundation bed, moving directions of the first conveying belt and the second conveying belt are parallel to each other, and the height of each of the first conveying belt and the second conveying belt is equal to the that of the bases; a cutting unit is arranged between any two adjacent transmission systems, and the moving direction of the cutting units is perpendicular to the moving direction of the transmission systems. By the arrangement, glass is stressed uniformly during cutting, and production efficiency is improved.