NOVELTY - The method comprises dissolving organic molecules in an organic solvent solution for forming a light-emitting layer using first electrospray and for forming an electron transfer layer using second electrospray, applying high-voltage electricity on a hole transport layer through a nozzle, spraying the second solution on the light emitting layer and the electron transport layer, and drying the layers to form multilayer films. The light emitting layer has star-like shape or hook-like shape. The organic molecule for the light emitting layer formation has molecular weight of 400-100000.    USE - The method is useful for manufacturing organic multi-layered thin film using electrospray method, where the thin film is useful in an organic light-emitting device or organic solar cell (all claimed).    ADVANTAGE - The method allows efficient manufacture of the organic multi-layered thin film with long lifetime and high uniformity thus improving the luminous efficiency of the light-emitting device.    DETAILED DESCRIPTION - The method comprises dissolving organic molecules in an organic solvent solution for forming a light-emitting layer using first electrospray and for forming an electron transfer layer using second electrospray, applying high-voltage electricity on a hole transport layer through a nozzle, spraying the second solution on the light emitting layer and the electron transport layer, and drying the layers to form multilayer films. The light emitting layer has star-like shape or hook-like shape. The organic molecule for the light emitting layer formation has molecular weight of 400-100000. The organic molecule for the electron-transport layer formation has molecular weight of 400-1200. A substrate is formed on glass or macromolecular film. The applied voltage is 2-10 kV. The injection speed of spray solution is 1-100 mu l/min. The distance between the substrate and nozzle is 1-10 cm. The substrate includes a patterned mask. The drying step is performed for 20 minutes. The method further comprises forming the hole transport layer on the substrate, and performing printing step consisting of slot die coating, spray coating and gravure coating. An INDEPENDENT CLAIM is included for an organic multi-layered thin film.