The invention relates to the technical field of improvement and fertilization of soil, in particular to a green fertilization method for reclaimed land. The green fertilization method for the reclaimed land includes the steps of: screening out gravel in soil of the land which is obtained from a reclaimed house site, crushing mushroom residues, and modifying the reclaimed soil by using the crushedmushroom residues and urea, wherein modification comprises the steps of: mixing the mushroom residues and topsoil 5-7 days before sowing of spring crops and late-autumn crops is conducted, 1-2 days before sowing of the spring crops and late-autumn crops is conducted, applying urea, and covering the soil with the mushroom residues; and in a period between spring and late autumn, mixing the mushroomresidues with the topsoil. Through adoption of the green fertilization method for the reclaimed land, organic matter of 0-20 cm of the soil of the reclaimed land can be promoted and improved by 12.9%per year on average, the content of N, P and K is improved by 6.2-10.4% under the action of promotion, the volume weight is reduced by 3.6-6.9%, the field moisture capacity is increased by about 2.8-3.8% on average, and the annual yield of wheat, corn and other crops is increased by 3.6-5.5%.