The invention discloses a method for planting peanuts. The method comprises the following steps that 1, seed selection is conducted, wherein seeds which are same in size and plump are selected; 2, seed pretreatment, wherein the selected peanuts seeds are placed in a container containing seed-soaking liquid, vacuumizing is conducted, and peanut seeds are pretreated; 3, land selection and soil preparation are conducted; firstly sandy soil and oil-sand soil are selected, deep ploughing is conducted on a land parcel, the soil is turned up, meanwhile farmyard manure and soil conditioner are applied, water irrigation is conducted, and after water irrigation, in the next day, shallow ploughing is conducted once; 4, ridging, sowing and mulching are conducted, wherein a peanut planter having the multiple functions of ridging, sowing and mulching are used for ridging, sowing and mulching; field management is conducted, wherein spraying is conducted, seedling checking and reseeding are conducted at the right time, and a foliar fertilizer and a bactericide are sprayed; 6, harvesting is conducted. According to the method for planting the peanuts, the seedling emergence rate of peanuts is improved, the population number of aphid larva is reduced, the occurrence of leaf spot diseases and basal rot diseases are reduced, and the yield and quality of peanuts are improved.