NOVELTY - The film (1) has a set of nanocomposite layers (11) arranged on a plastic substrate (10), where each layer comprises first and second sets of metal oxide layers (111, 112) and the second set of layers is formed on the first set of layers. The metal oxide layers are formed by different materials. A spinel phase (113) is formed at a contact interface of the first and second sets of metal oxide layers, and includes average density ranging from 5.5 g/cm3 to 7.2 g/cm3. The set of nanocomposite layers serves as an upper electrode or a lower electrode of an organic LED (OLED).    USE - Transparent conductive property and water-vapor resistance function type nano-laminated film for an optoelectronic product e.g. OLED device (claimed), or high-end electronic device. Can also be used for an organic photovoltaic (OPV) battery, thin film photovoltaic battery, flexible LCD and an electronic paper bloom.    ADVANTAGE - The spinel phase is formed at the contact interface of the metal oxide layers, and the average density of the spinel phase ranges from 5.5 g/cm3 to 7.2 g/cm3, so that the water vapor resistance reaches 0.001 g/m2, which can comply with industrial standard for packaging electronic devices, thus improving better water vapor blocking effect while preventing the film from being cracked easily for package of the flexible electronic devices by bending the flexible electronic device by reducing thickness of the film, and hence extending the service life of the electronic device.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for manufacturing a nano-laminated film with a transparent conductive property and a water vapor blocking function.    DESCRIPTION OF DRAWING(S) - The drawing shows a side sectional view of a nano-laminated film.    Transparent conductive property and water-vapor resistance function type nano-laminated film (1)    Plastic substrate (10)    Nanocomposite layers (11)    Metal oxide layers (111, 112)    Spinel phase (113)