Abstarct: In recent years, nanocomposite materials consisting of core and shell have been attracting great interest and attention of resaerchers because of their potentional in catalysis, environmental protection and biomedical use. Among them, Fe3O4 nanoparticles are a kind of promising candidate due to their magnetic properties, chemical stability and low toxicity. However, they can hardly adsorb active components due to lack of functional groups on their surfaces, so in this research, we have been coated boehmite on Fe3O4 because boehmite has high surface area, excellent biocmpatibility and good chemical stability. Fe3O4 NPs were prepared by solvothermal method, and then it was coated with boehmite via convensional and hydrothermal hydrolysis {(Fe@B), (Fe@B*)}. The sol-gel assisted hydrothermal process was optimized for temperature and time and the nano-Fe3O4@boehmite core-shell products were analyzed by TEM. Then Fe@B and Fe@B* beds were covalently functionalized with 3-(tri-methoxysilil)propyl amin {(Fe@B-A), (Fe@B*-A)}. Then Vanadium oxo sulfate supported on Fe@B-A and Fe@B*-A beds, {(Fe@B-A-V), (Fe@B*-A-V)}. These catalysts were characterized by FT-IR, ICP, CHN, TG analysis. Then they were used in epoxidation of alkene and yields of products were investigated by GC. The catalytic procedure for Fe@B-A-V catalyst was optimized for different parameters such as amount of catalyst, solvent, oxidant, temperature and time. Also, our invistigation showed that they are completely recoverable and the efficiency of them remains unaltered even after five cycles.