Neutron scattering and diffraction spectrometers are powerful tools used in modern scientific measurements. Neutron film elements and optics have become the key parts of guiders， collimators， benders， polarizers， and flippers， because they can transport， focus， collimate， and polarize neutrons. Currently， owing to the increase in the number of neutron facilities in China， the demand for neutron film elements and optics has also been increasing. In this paper， the development and applications of supermirrors， flippers， guiders， and focusing optics are presented based on the supermirrors at the Institute of Precision Optical Engineering （IPOE） at Tongji University.