Autoclaved aerated concrete plate cutting device

The utility model relates to the technical field of autoclaved lightweight aerated concrete partition wall board construction, and discloses an autoclaved aerated concrete board cutting device which comprises a working platform, and two limiting plates which are in the vertical direction and are in bilateral symmetry are arranged at the top of the working platform. A pushing part used for enabling the two limiting plates to move close to each other or away from each other is arranged on the working platform, a mounting groove is formed in one side of the top of the working platform in the width direction of the working platform, and a cutting knife with the top extending to the position above the working platform, capable of moving left and right and used for cutting the plates is arranged in the mounting groove; the working platform is provided with a pressing plate which is located over the cutting knife, is of an inverted-U-shaped structure and can move up and down. Through the arrangement of the limiting