The work aims to improve the design and application theory of PVA water-soluble film materials in the packaging field, promote the deep integration of PVA water-soluble film materials and packaging design industry, and promote the transformation of packaging industry to green and environmental protection. With PVA water-soluble film materials as the study object, combined with the relevant packaging cases in various fields, the functional superiority of water-soluble film materials was summarized, the main features of packaging made of water-soluble film materials were generalized, and the differences in design concepts between packaging made of water-soluble film materials and the traditionally sold one were compared. The application of PVA water-soluble film materials in the field of packaging had been continuously expanded, and had achieved remarkable results in improving user safety, protecting the ecological environment and improving the use efficiency. PVA water-soluble film materials have broad application prospects in the packaging industry due to their unique advantages. However, in the specific application, more attention should be paid to the water-soluble film packaging, such as use safety, protection safety and visualization.