To address the variations in river flow velocities across different regions and account for the differing adaptabilities of triboelectric nanogenerators (TENGs) and electromagnetic generators (EMGs) to these flow velocities, this study developed a bionic triboelectric-electromagnetic hybrid generator (ME-TEHG) driven by wind-water energy. The ME-TEHG incorporated bionic components and a fluid acceleration mechanism to lower the required starting flow velocity. Compared to a traditional turbine (with a starting flow velocity of 0.24 m s −1), the ME-TEHG achieved a lower starting flow velocity of 0.15 m s −1, demonstrating a reduction of 37.5 %. The ME-TEHG also demonstrated multi-mode switching between its TENG and EMG components and incorporated a wind-water differential structure to optimize performance at different flow velocities. For instance, at a flow velocity of 0.5 m s −1, the ME-TEHG achieved a peak power of 3.63 mW. Conversely, at a flow velocity of 0.7 m s −1 and a wind speed of 8 m s −1, the peak power reached 40.01 mW. Remarkably, compared to a traditional turbine containing only a TENG unit, the ME-TEHG could produce up to 13.1 times more power in no windless environment and up to 49.5 times more power at higher wind speed, demonstrating outstanding power generation performance.