NOVELTY - A young Orchards potatoes planting method involves selecting 1 old-orchard with canopy density of 0.2-0.5, fruit trees spaced at 3 m above park, thick deep soil and fertile soil and protecting saplings of fruit trees. Land is leveled. Potato interplanting process is performed and 20-25 kg/acre diammonium phosphate and 3-4 kg/acre potassium chloride are applied on land. Ridge constructing process is performed followed by selecting and processing seed, sowing, managing field, managing fertilizer, controlling pest, and harvesting.    USE - Method for planting young Orchards potatoes.    ADVANTAGE - The method enables planting young Orchards potatoes with reduced soil erosion and promoted fruit growth in cost-effective and eco-friendly manner.    DETAILED DESCRIPTION - A young Orchards potatoes planting method involves selecting 1 old-orchard with canopy density of 0.2-0.5, fruit trees spaced at 3 m above park, thick deep soil and fertile soil and protecting saplings of fruit trees. Land is leveled. Fruit trees are planted in line ridge with wide of 0.2-4 m and height of 0.2 m. Potato interplanting process is performed and 20-25 kg/acre diammonium phosphate and 3-4 kg/acre potassium chloride are applied on land. Ridge constructing process is performed by planting fruit tree saplings along repaired ridge line, where the ridge requires wide of 60 cm, bottom width of 70 cm and height of 15 cm, spraying herbicides, mulching and surrounding by soil compaction. Seed selection and processing processes are performed by selecting high-quality varieties seed before sowing, putting in light scattering germination room until the buds sprout, cutting seed tubers of potato into 30-50 g, putting cutting block tubers in 0.4-0.5 kg manganese zinc metalaxyl, 0.6-0.8 kg carbendazim and 25-30 kg gypsum powder, dressing, and removing after 10 hours. Open hole sowing process is performed by sowing seed in soil depth of 10-15 cm, covering opening, where the hole spacing is 22-25 cm, area of basic seedling is 1800-2000 acres and seed quantity is 78-82 kg. Field managing process is performed by carrying out timely cultivation after sowing in case of rain, sealing with plastic film and fine soil and replanting deficiency plant. Fertilizer managing process is performed by applying 5 kg urea on ground walkways and planting saplings line and applying potassium fertilizer for every 15 days once in the flowering stage of potato. Pest controlling process is performed by utilizing biological or chemical fungicide for once every 7-10 days for preventing potato late blight. Harvesting process is performed by harvesting when two-thirds of the lower leaves are yellow color and promptly removing waste film and potato stems and leaves to prevent contamination of soil and young trees harm.