The invention relates to an organic electroluminescence compound, a preparation method thereof and an organic electroluminescence device. The structural formula of the organic electroluminescence compound is shown as a chemical formula 1; and a solution for introducing a novel indolo acridine derivative is proposed. The hole transport capacity is obtained by introducing arylamine and the novel indolo acridine derivative, and high-quality organic electroluminescence compound is high in efficiency and long in service life. Compared with an organic electroluminescence device prepared by taking NPB as a hole transport layer, the organic electroluminescence device prepared by taking the organic electroluminescence compound provided by the invention as a hole transport layer has lower starting voltage, the luminous efficiency is obviously improved, and the service life is obviously prolonged. The preparation method of the organic electroluminescence compound, provided by the invention, is simple, practicable, and high in yield.