The invention discloses a preparation method of a spherical lithium-enriched anode material with gradient concentration. The invention has the technical effects as follows: a controlled crystallization coprecipitation method is adopted to prepare the spherical lithium-enriched anode material with the gradient concentration, the Mc concentration of the spherical lithium-enriched anode material gradually increases from cores of spherical particles to surface layers, and the concentrations of Ni and Co gradually decrease from the cores of the spherical particles to the surface layers. The spherical lithium-enriched anode material not only has the characteristic of high specific capacity of the lithium-enriched anode material, but also acquires more excellent cyclic life and thermal stability through gradient Mn concentration, and can meet the requirements of electric vehicles and other fields for the service of motive power supply. The preparation method is simple in preparation process, easy to control, low in raw material cost and friendly to environment, can be applied to large-scale industrialization, and has a good application prospect.