This study focuses on improvement mechanical properties of the zein films by glycosylation modifications under dry-heating conditions for capsule shells. The characterization of zein-inulin were analyzed by SDS-PAGE. DSC, FT-IR and SEM. The result indicates that the tensile strength of zein-inulin were 2.46 times of non-modifified zein. The formation of conjugates was verified by SDS-PAGE, infrared spectrum, and showed that the zein could joint the inulin by glycosylation with the covalent bound. The thermal denaturation temperature of zein was increased by DSC. It indicates that the thermal stability increases. Zein and zein-inulin films were scaned by SEM. The surface of zein-inulin films' microporous structure disappeared, and the smooth of zein-inulin film was better than of that zein. The capsule shells can be produced from zein and zein-inulin. The inspection items for the capsule shells met the requirements of the Pharmacopoeia of the People's Republic of China 2015 Edition.