The utility model relates to the technical field of bulletproof glass, in particular to bulletproof glass convenient to install, installation work of the bulletproof glass is achieved through cooperation of an installation mechanism, operation is convenient and easy, the bulletproof glass is more stable and firmer, and practicability is high. Two mounting grooves are symmetrically formed in the mounting frame, an auxiliary groove is formed in the upper mounting groove, a mounting mechanism is arranged on the mounting frame and comprises two moving plates, the two ends of the bullet-proof glass are tightly attached to the two moving plates correspondingly, and the two moving plates are slidably connected with the two mounting grooves correspondingly; a plurality of telescopic columns are fixedly installed on the two movable plates, the end, away from the corresponding movable plate, of each telescopic column is fixedly connected with the corresponding installation groove, each telescopic column is sleeved with a spring, and the two ends of each spring are fixedly connected with the corresponding installation groove and the corresponding movable plate respectively.