The work aims to prepare renewable plastic packaging film from kitchen garbage kidney bean. The renewable plastic film was prepared by kitchen garbage kidney bean via direct immersion in trifluoroacetic acid (TFA). FTIR, SEM and AFM were used to characterize the structure and morphology of the film. The content, existence form and crystal structure of mineral elements in the film were studied and analyzed by ICP-MS, XPS and XRD. The FTIR indicating the existence of cellulose and lignin in kidney bean renewable plastic film was obtained. The irregular stricture channels were distributed in the cross-section of the film. The aggregation of inorganic particles was found on the film and the surface roughness of the film was 29.6 nm. Various kinds of trace mineral elements existed in the renewable plastic film, mainly in the form of Ca3(PO4)2, MgO, MgCO3 and KBr, so that natural mineral elements in the plant were introduced into the renewable plastic film. From the discussion on the mechanical properties of renewable plastic film, compounded with microcrystalline cellulose, the tensile strength of kidney bean renewable plastic film ranged from 1.5 MPa to 37.7 MPa and the elongation at break ranged from 133% to 13%. The kidney bean wastes can greatly regulate the properties of strong-polar renewable films. The modulus of its composite film lies in the gap between engineering polymers, elastomers and starch-based natural polymers, filling the performance gap between synthetic polymers and starch-based polymers. This study provides a new idea for the recycling of kitchen garbage in China, and new reference for the preparation of biomimetic and biomass materials.