The invention discloses a glass clamping mechanism capable of realizing turn over. The glass clamping mechanism comprises two groups of bases, wherein mounting bases are arranged on the two groups of the bases; connecting rods are arranged on the mounting bases; one end, away from the mounting base, of each connecting rod is connected with one clamping part; fixed parts are arranged on joints of the connecting rods and the clamping parts; the clamping parts can rotate around axes of the connecting rods; the fixed parts are rotated for fixing the clamping parts onto the connecting rods; the clamping parts are U-shaped; one end, away from each connecting rod, of each clamping part is provided with an opening, two pressing plates are arranged in the opening, and the two pressing plates are connected onto the clamping parts through pressing rods; and the pressing rods are in threaded connection onto the clamping parts. The glass clamping mechanism can realize turnover of glass after clamping, is simple in structure, is simple and convenient to operate, and is good in reliability.