The invention relates to the technical field of food processing and particularly discloses a bacon bagging and quantitative filling processing method. The method comprises the steps that kneaded raw materials are subjected to quantitative filling and film pressing treatment; according to the quantitative filling process, square-bottom plastic bags matched with the inner wall of a mold in shape are prepared according to the size of the mold, a discharge tube of a vacuum sausage filler is sleeved with one square-bottom plastic bag, and the kneaded raw materials are quantitatively injected into the square-bottom plastic bag; according to the film pressing process, the square-bottom plastic bag is placed into the mold after completion of quantitative filling, the redundant part of a bag opening are folded up, and the bag opening is covered with a mold cover. By means of the method, automatic quantitative filling during bacon processing is realized, and the production effectiveness is improved; meanwhile, the situation that contact between meat and hands during manual quantifying is avoided, and contamination of microbes in the meat is reduced; air in meat pieces is removed through the vacuum pumping function of the vacuum sausage filler, so that the procedure of manual air discharging is omitted; and meanwhile, the meat pieces are bonded more closely after filling and forming, the density of the meat pieces is enhanced, slices of products are more smooth and free of pores, and the slicing defective rate is reduced.