The invention discloses a longitudinal and horizontal double-conveying, packaging and sealing film all-in-one machine with a coding function. The all-in-one machine comprises a rack, a film supply part, an electric control box, a coding part and a sealing film part; the film supply part is fixed to the lower part of the back side of the rack, and the coding part is fixed to the upper part of the back side of the rack; the electric control box is fixed to one side of the rack, and the sealing film part is fixed in the rack; a packaging film is output from the film supply part, and packaged andcoded through the coding part; longitudinal packaging and horizontal packaging are performed through the sealing film part, materials are put in, and the packaging is cut off, so that baggy packagingfinished products are formed; and the sealing film part comprises a feeding mechanism, a forming mechanism, a film conveying mechanism, a longitudinal sealing mechanism and a horizontal sealing mechanism. The all-in-one machine is high in degree of automation, and saves labors; the sanitary environment of the packaging is improved, and bag making, coding and packaging are finished through one machine; the cost is saved, and the production efficiency is improved, and the all-in-one machine has high market application values.