The automatic sealing and cutting machine can be used for full-automatic on-line shrinkage packaging of products. Photoelectric technology is used for automatic detection of products. Two modes of automatic feeding or manual feeding can be selected. Folding film is used and other three sides can be sealed. The constant temperature heating sealing and cutting system can be used for sealing and cutting PE, PVC, POF and other industrial standard heat sealing films. The seal is firm and beautiful, especially suitable for POF sealing and cutting. When changing the size of the product, you only need to make simple adjustment through the hand wheel, without replacing any parts, which reduces the product replacement time and makes it easier to operate. The adjustable front-end feeding system and the back-end storage working platform make the whole machine truly realize high-speed, unmanned and automatic operation.