The research progress in preparation and property of the polysaccharide natural polymer/PVA biodegradable blend films using PVA and polysaccharide natural polymers such as starch, carboxymethyl cellulose, chitosan, sodium alginate and lignin as raw materials was reviewed in this paper. In this paper, method and application of blending of starch, carboxymethyl cellulose, chitosan, sodium alginate and lignin respectively with PVA in order to prepare the blend films were discussed. The researches and applications of the polysaccharide natural polymer/PVA biodegradable blend films were summarized. And the future development of the blend films was pointed out. The research of the polysaccharide natural polymer/PVA biodegradable blend films is one of the hot spots in scientific research fields. The blend films have important significance for reducing environmental pollution and saving energy. Therefore, the blend films have broad application prospects in the future.