The invention relates to a blue-ray doped material, a preparing method thereof and an organic electroluminescence device. The chemical formula of the blue-ray doped material is shown in formula I, wherein X is oxygen or sulfur or does not exist, Ar1 and Ar2 is any one of aryl group, polycyclic aromatic hydrocarbon group or aromatic heterocyclic group, and Ar1 and Ar2 are identical or different. The blue-ray doped material has appropriate HOMO and LUMO energy levels, thereby having high hole transport property; meanwhile, the blue-ray doped material has high film-forming property and stability, and therefore the blue-ray doped material can be applied to the organic electroluminescence device.