The work aims to discuss the modification methods of improving physical and chemical properties and antibacterial properties of edible preservation film, synthetic polymer film and degradable preservation film, in order to provide guidance for the modification of food preservation film.The physical and chemical properties and antibacterial properties of food preservation film were studied by adding inorganic micro and nano materials, natural antibacterial agents or by polymerizing various antibacterial substances. The research ideas and methods of adding inorganic micro and nano materials to improve the physical and chemical properties and the antibacterial properties of food preservation film became relatively mature. The modification of food preservation film by in-situ synthesis of nanomaterials had a better effect, but the antibacterial mechanism of food preservation remained to be further studied. The application of the composite technology of micro, nano and biological antibacterial agent in the modification of food preservation film has a good prospect and can provide theoretical support for the development of new safe and long-term food preservation materials.