The utility model relates to a multilayer plate high-precision automatic saw, which comprises a vertical saw, a transverse saw and an automatic program controller and is characterized in that a plate loading lifting table is arranged in front of the vertical saw, an inclined roller table is arranged between the vertical saw and the transverse saw, a plate outlet transmission roller table and a plate outlet lifting table are sequentially behind the transverse saw, a pneumatic drag plate mechanism supported by a support frame is arranged above the plate loading lifting table and a vertical saw plate conveying trolley, a photoelectric stroke switch for controlling the position of plate blanks and an electromagnetic valve for controlling the work of a pneumatic piston cylinder are arranged on the support frame, a plate blank positioning plate, a plate pressing mechanism and a plate outlet transmission mechanism are arranged on the plate conveying trolley of the vertical saw, and a plate beating device and the photoelectric stroke switch for controlling the height of the finished product plate blanks are arranged on the support frame of the plate outlet lifting table. The multilayer plate high-precision automatic saw can be operated by one person, the automation degree of the automatic saw is high, and the efficiency is high.