The invention discloses a high-nickel material coated with aluminum and lithium silicate on the surface and doped with fluorine on a surface layer. The high-nickel material comprises an aluminum and lithium silicate coating layer and a high-nickel ternary material central layer, wherein the thickness of the coating layer is 1-200 nm, and the coating layer is doped with a fluorine element. In addition, the invention discloses a preparation method of the high-nickel material. The preparation method comprises the steps of mixing, drying and screening, lithium-adding sintering and fluorine-addingthermal treatment. The aluminum and lithium silicate fast-ion conductor material coating layer has good lithium-ion conducting performance, doped fluorine ions replace oxygen in the coating layer or the high-nickel material, accordingly the electronic conductivity of the material is improved, finally the surface of the high-nickel material has better lithium-ion and electronic conductivity properties, and playing of the rate capability of an anode material for lithium ion batteries is facilitated. The preparation method of the high-nickel material is low in cost, the process is simple, and industrialization is easy to achieve.