In order to prevent the white pollution of films and improve the yield and quality of peanut in western Jilin province, a contrast experiment on five kinds of degradable film was carried out. The results showed that the degradation speed of degradable film Q3 was too fast, degradation periods of other kinds of degradable film were suitable.Degradable film could achieve similar effect as the common plastic film in raising temperature and retaining humidity. The yield of peanut covered with degradable films were higher than that uncovered with film, increased by 15.3%-39.5%. Q5 and Q1 could satisfy the need of soil temperature and moisture for peanut in different growth stag-es. In the early stage, they could increase temperature and contain water; in the later stage, they could increase the infiltration of water. In addition, they could reduce the white pollution and had good ecological and economic benefits and broad application prospects.