The invention relates to the technical field of crop cultivation, in particular to a peanut high-yield cultivation method. The method includes the following steps that firstly, after crops are harvested in autumn in first year, deep scarification is conducted on a planting land once, the thickness of the soil loosening layer of the planting land ranges from 45 cm to 50 cm after deep scarification, and natural airing is conducted after the planting land is loosened deeply. According to the peanut high-yield cultivation method, the land leveling procedure is simplified, the soil structure is not destroyed, work is convenient and fast to conduct, the soil loosening degree is increased, and a hardening layer is broken through effectively. Compared with peanut plastic film mulching and cultivation in the prior art, the soil loosening depth is deepened by 15 cm to 20 cm, the soil loosening degree is increased greatly, the water-retaining property of soil is improved, the soil condition of the region where soil is easy to harden is improved greatly, growth of peanuts is promoted, the yield per mu of peanuts is increased, water resources are saved, the production cost is lowered, and the income of peasant households is increased greatly.