The invention belongs to the field of photoelectric devices, and discloses a hemispherical shell organic electroluminescence device with two luminescent layers and a preparation method for the device. The hemispherical shell organic electroluminescence device with the two luminescent layers comprises a hemispherical shell base, wherein an anode layer, a p-type doped hole transport layer, an electron blocking layer, a blue luminescent layer, a green luminescent layer, a hole blocking layer, an n-type doped electron transport layer and a cathode layer are stacked on the internal surface of the hemispherical shell base in sequence. The hemispherical shell organic electroluminescence device is provided with the two luminescent layers with a subject and object doped structure, and a subject material is a bipolar subject material or a mixed material of hole transport and electron transport subject materials, so that the impact recombination zone of excitons can be expanded, triplet-triplet annihilation is avoided, and the starting voltage of the organic electroluminescence device is reduced.