The invention provides a diaryl fluorine pi accumulated small molecule organic nanostructure and application of the diaryl fluorine pi accumulated small molecule organic nanostructure. Diaryl fluorine pi small molecules are used as an assembly unit to be synthesized into a water phase separation one-dimensional nanostructure for a reprecipitation method of a soft mold plate through surface active agent. On the basis, the nanostructure is successfully applied to an organic thin film transistorized memory. The pi accumulated small molecules are small molecule photoelectric materials different from traditional pi conjugate small molecules, and a large amount of volatile toxic organic solvent used for processing traditional solutions is abandoned in the design and manufacturing process of the water phase one-dimensional nanostructure. On the basis, auxiliaries are added, one-dimensional nanometer material ink is applicable to manufacturing organic thin film electronic devices such as electric storage devices, photoswitches, electroluminescence devices and transistors with water solution processing methods such as film dropping, spinning coating, spraying, ink-jet printing and reel-to-reel, and a brand new controllable method is provided for developing green semiconductors and environment-friendly optoelectronics.