Broken bags will appear after sealing or sterilization. They need to be selected and cleaned to increase the beauty of the product and improve the exposure of the product. It is necessary to clean the residual oil and oil stains on the surface of the food packaging bag. The assembly line is mainly divided into decontamination cleaning and tap water cleaning. Carry out air drying or drying, and then carry out later selection. Its main function is to remove surface oil stains, pick out damaged bags, avoid secondary contamination of product packaging, bubble cleaning, and continuously let the products tumble in the water and interact with each other. Impact to achieve the purpose of cleaning for a period of time. After the packaging is cleaned, it is automatically lifted through the mesh belt to enter the next process. The bags being cleaned contained damaged products and were floating on the surface of the sink, requiring workers to sort them out. During the cleaning process, there will be no secondary damage to the packaging bag.