The invention relates to a range extender structure. The range extender structure comprises a damping hanging frame and a fuel power generating device; the damping hanging frame comprises a bottom frame, a first damping device and a second damping device, the bottom frame is of a rectangular frame structure, the first damping device comprises a first supporting frame and a first damping component,and the second damping device comprises a second supporting frame and a rotating hanging frame; and a first suspension assembly and a second suspension assembly are arranged on the fuel power generating device, the first suspension assembly and the second suspension assembly can be fixedly connected with the corresponding first damping device and the second damping device at the same time, so that the fuel power generating device can be fixedly installed on the damping hanging frame in a completely suspended manner. According to the range extender structure, the structure way of front supportand rear suspension is adopted, so that a good damping effect can be achieved, and meanwhile, compression springs are installed on a base to further reduce vibration noise generated by the range extender in the operation process.