The invention discloses a blue-ray doped material and a preparation method and application thereof, and belongs to the technical field of an organic optoelectronic material. The blue-ray doped material has a molecular structure as shown in a formula 1: (with reference to the specification), wherein X is oxygen or sulphur or does not exist; either of Ar1 and Ar2 respectively is one of an aryl group with a carbon atom number of 6 to 20, a condensed aromatic group with a carbon atom number of 10 to 20 and an aromatic heterocyclic group which contains at least one of a nitrogen atom, an oxygen atom and a sulphur atom and has a carbon atom number of 4 to 20. According to the blue-ray doped material disclosed by the invention, i.e. the compound as shown in the formula 1, due to existence of a spiro group and introduction of a triarylamine structure, carrier mobility and luminous efficiency of the blue-ray doped material are improved, and the optical-electrical characteristic of the blue-ray doped material is greatly improved; moreover, an xanthene group is used as a parent nucleus, so that the compound product has an excellent luminescent property. The blue-ray doped material has the luminescent property, is good in film forming property and has high stability at the room temperature.