The invention discloses a planting method free of plastic film mulching, soil preparation, bedding and ridging for potatoes in a circulating mode. The planting method is characterized by comprising variety selecting, seed potato processing, soil preparation, preheating and moisture regaining, seeding, wheat straw mat covering, fertilization, seedling emerging and freeze protection, seedling management and water management, wherein the soil preparation comprises the steps of ploughing soil in a first year and applying a mixed fertilizer of stable manure and a black ammonium compound fertilizer, preheating and moisture regaining are conducted ten to fifteen days before planting, and after water is sprayed to the soil, the soil is covered with a wheat straw curtain; fertilization comprises a base fertilizer stage and a topdressing stage; seedling emerging and freeze protection are conducted about fifteen days after seeding, the wheat straw curtain is removed to avoid the situation that seedlings cannot expose out of the soil due to the fact that the seedlings are pressed, the seedlings expose out of the soil in about twenty days, seedling freezing should be avoided at the moment, the seedlings can be covered with the wheat straw curtain at night, but it is noticed that the seedlings cannot be heavily pressed, and when the seedlings grow to 10cm, it is unnecessary to avoid seedling freezing. By means of the planting method, labor input is reduced, economic efficiency is improved, meanwhile use of mulching films difficult to degrade is avoided, and therefore the planting method is economical and protects the environment.