The invention discloses an automatic express packaging device and method. The device comprises a bagging mechanism, a bag conveying mechanism, a wind force bag opening mechanism, a delivery mechanism, an adhesive tape removal mechanism, a bag sealing mechanism, a transportation-out mechanism, a drive part, a detection part and a control part. Each of the mechanisms is fixed by a fixing plate. The packaging method comprises the steps that express bags are conveyed into a conveyor belt through the bagging mechanism and then pressed tightly, and bag openings are blown open by an air blowing device; then goods are pushed by the delivery mechanism and slide into the bags, then the express bags are released, and the express bags fall in to the adhesive tape removal device under the effect of the gravity; after the express bags are fixed by a push device in position, bag opening adhesive tape is torn off by a scraper, after the adhesive tap is torn out, an overturning plate turns over, the bag openings are sealed, and the goods are transported out; and meanwhile, express labels are printed by printing equipment and transported out along with the express bags, and the final labeling task is completed manually. By the adoption of the device, the full automation of the express packaging is achieved; the structure is simple, and mass production is facilitated; and the logistics speed is increased effectively.