The invention discloses a microsphere laminated lithium-enriched manganese-based solid solution anode material, wherein the molecular formula is xLi2Mn1-yNyO3*(1-x)LiMn1-zMzO2; in the formula, M is one or more of Ni and Co; N is one or more of Fe, Cr, Al and Mg; x is more than 0 and less than or equal to 0.3; y is more than 0 and less than or equal to 0.1; and z is more than 0 and less than or equal to 0.7. The invention discloses a preparation method of the material at the same time. The preparation method comprises the following steps of: (1), after co-precipitating a manganese source compound and an M source compound, and sintering the manganese source compound and the M source compound with a lithium source compound in a mixed manner to obtain a precursor 1); (2), sintering the manganese source compound, the lithium source compound and an N element oxide in a mixed manner to obtain a precursor 2); and (3), mixing, acidly washing, spraying and drying the precursor 1) and the precursor 2), and sintering to obtain the lithium-enriched manganese-based solid solution anode material. The microsphere laminated lithium-enriched manganese-based solid solution anode material disclosed by the invention has the advantages of high energy density, good cycle performance, low cost, safety, excellent performance and the like and is applied to the power field with high energy and long service life.