In this work, a novel organic-inorganic hybrid nanoflower was synthesized by the incorporation of glucose oxidase and lipase and used as the coimmobilized enzyme in the epoxidation of alkenes. Imaging and catalytic performance results suggest that the dual-enzyme nanoflower greatly reduces the diffusion and decomposition of H2O2 and facilitates the mass transfer of glucose oxidase/lipase. Furthermore, the controllable generation of H2O2 and peracid contributes to the good stability of the dual-enzyme nanoflower, which exhibits a higher catalytic performance than the free enzymes in a dual-enzymatic cascade epoxidation. The yield of epoxidation was up to 82% even after ten cycles, further indicating the good reusability of the dual-enzyme nanoflower and its great potential for application in other enzymatic oxidations.