The invention discloses a solar cell with zinc oxide based organic/inorganic hybrid nanostructure. The working area structure of the solar cell is as follows: a zinc oxide based nanopillar array is prepared on a substrate; by determining the arrangement and the pillar distance of the nanopillars, a two-dimensional photonic crystal structure is formed, so as to achieve absorption and antireflection to solar energy furthest; simultaneously an organic polymer material is used for filling gaps of nanopillar array along the c axis direction; the organic filling polymer between nanopillars absorbs sunlight to generate excitons which are decomposed into positive and negative current carriers and transmitted to the nanopillars of ZnO-based materials; the zinc oxide nanopillars are utilized for spontaneously separating an electron hole pair along a strong polarization field of the c axis direction; the electron holes are transmitted to the two ends of the nanopillars along the nanopillars and are collected by electrodes, thus realizing photovoltaic output without p-n nodes; the output voltage of the solar cell is only related to bandgap width of ZnO, and the solar cell can realize high breaking voltage output of devices and provide paths for improving photoelectric transformation efficiency of the devices.