In order to develop an environment-friendly active packaging material with better comprehensive properties, PVA/CS/EGCG composite films with different mass fractions of EGCG were prepared by using polyvinyl alcohol and chitosan as substrates and EGCG as the modifier. The UV-visible spectrophotometer was used to characterize the UV shielding of the composite film, and the thickness, color difference, light transmittance, mechanical properties, antioxidant properties and antibacterial activity of the composite film were also measured. The experimental results showed that the incorporation of EGCG reduced the brightness of the composite film and made the film have excellent UV barrier properties, while improved the tensile strength of the composite film and kept high elongation at break. The free radical scavenging activity of DPPH increased significantly with the increase of EGCG content, indicating that the oxidation resistance of the composite film has been significantly enhanced. The antibacterial performance of the composite film was significantly improved, and the antibacterial rate of the composite film with a mass fraction of EGCG of 5% reached 92.58%.