Abstract: Research on the effect of different chitosan compound fluid films on preservation of fresh wolfberry was carried out.The hardness, electrical conductivity, soluble solids content, PPO and POD enzyme activity, V_C content of fresh wolfberry were detected once a day at normal temperature of 25 ℃ to select the best chitosan compound liquid.The results showed that 1.0%chitosan and 0.1% potassium sorbate mixed with acetic acid of p H4.0 had the best preservation effect.The fresh wolfberry could be preserved for 7 days at normal temperature of 25 ℃ and the cell permeability, hardness, electrical conductivity, soluble solids content and V_C content could be kept well. The fruit senescence was put off and storage period of fresh wolfberry was extended.