NOVELTY - A solar battery with organic micromolecular mixture heterojunction comprises transparent insulating layer; transparent electrode layer, first buffering layer, first photosensitive layer, second photosensitive layer, third photosensitive layer, second buffering layer and high-reflectivity electrode layer laminated on one side of transparent insulating layer; and lower conversion layer formed on other side of transparent insulating layer.    USE - Solar battery with organic micromolecular mixture heterojunction.    ADVANTAGE - The high-reflectivity electrode is rationally used to adjust light field distribution thus the solar battery acquires best operating state.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation of solar battery comprising plating metal oxide conducting film on transparent insulating layer, coating metal oxide conducting film with photoresist and a photoresist thinner, and forming a transparent electrode layer by photoetching and corrosion; growing micromolecular material to form first buffering layer by rotarily coating polymer film by soil-gel method or evaporation on transparent electrode layer, forming first photosensitive layer by vacuum evaporation on upper side of first buffering layer, forming second photosensitive layer by vacuum evaporation on upper side of first photosensitive layer, forming third photosensitive layer by vacuum evaporation on the upper side of the second photosensitive layer, and preparing polymer film by vacuum evaporation or rotary coating of micromolecular material on third photosensitive layer as second buffering layer; and preparing metal oxide film electrode by vacuum evaporation of metal film strip electrode or sputtering method as high-reflectivity electrode layer on second buffering layer, preparing film by soil-gel method on other side of transparent insulating layer as lower conversion layer comprising halides single-doped or double-doped with rare earth ions, oxide, borate, silicate, phosphate and vanadate.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the solar battery with organic micromolecular mixture heterojunction. (Drawing includes non-English language text)