The invention discloses raw paper cutting equipment used before printing of a printing machine. The raw paper cutting equipment used before printing of the printing machine comprises a machine table, the upper end of the machine table is fixedly connected with an L-shaped first plate, the first plate is provided with a cutting mechanism for cutting raw paper, the cutting mechanism comprises a cutting knife, the machine table is provided with a placing mechanism for leveling and placing the cut raw paper, the placing mechanism comprises two electric push rods fixedly connected to the lower end of the machine table, the movable ends of the two electric push rods are fixedly connected with a movable frame through fixing blocks, the movable frame freely slides on the side wall of the machine table, a driving groove is formed in the inner wall of the movable frame, a driving disc is rotationally connected to the inner wall of the driving groove in a sealed mode, and a first rod is fixedly connected to the side wall of the driving disc. According to the raw paper cutting equipment used before printing of the printing machine, by arranging the placing mechanism, cut hard body paper can be placed after being adsorbed and moved; and the positions, located under the hard body paper, of the hard body paper are consistent each time, so that the hard body paper is kept tidy when collected, and later printing is facilitated.