NOVELTY - Cultivating pollution-free balsam pear, comprises performing nursery substrate preparation including mixing ash and vermiculite, adding and mixing the mixed matrix with chicken manure and then drying, sealing nursery substrate with cover and then maintaining the humidity, selecting dry, sunny leeward, irrigation and convenient winter fallow seedbed, performing ditching and ridging, performing fine sowing and planting site preparation, performing fertilizer and water management using nitrogen, phosphorus and potassium fertilizer, and performing pest control and chemical control method.    USE - The method is useful for cultivating pollution-free balsam pear (claimed).    ADVANTAGE - The method is capable of economically cultivating pollution-free balsam pear with increased disease resistance, reduced pesticide residues and beautiful appearance.    DETAILED DESCRIPTION - Cultivating pollution-free balsam pear, comprises selecting small melon vine, small internodes and small leaves, performing nursery substrate preparation including mixing ash and vermiculite at a volume ratio of 2:1 to obtain mixed matrix, adding and mixing the mixed matrix with 10 kg of chicken manure and then drying to obtain nursery substrate using lime nitrogen by uniform spreading method, sealing nursery substrate with cover and then maintaining the humidity to 65-75% for 5-8 days, selecting dry, sunny leeward, irrigation and convenient winter fallow seedbed, performing ditching and ridging the nursery substrate having a diameter of 10 cm, performing seed treatment by diluting 50% of carbendazim with water at a ratio of 1:500-800, soaking at average temperature of 15 degrees C for 48 hours, performing fine sowing, performing planting site preparation including selecting less than 3 years cucurbits crops planted plots, plowing sun mattress, applying 5000-6000 kg of manure, 10 kg of diammonium phosphate and 13-15 kg of potassium sulfate per acre, performing field management before flowering, maintaining shed indoor daytime temperature at 20-25 degrees C and night temperature to 13-15 degrees C, performing fertilizer and water management using nitrogen, phosphorus and potassium fertilizer by spraying the fertilizer for 4-5 days, where composition of the raw material for the fertilizer includes 8-10% of switchgrass, 8-10% of pepper seeds, 8-10% Paulownia flowers, 8-10% of Paulownia sawdust, 8-10% of cork, 8-10% of Anemone hupehensis, 8-10% of Eucalyptus robusta leaves, 8-10% of Sophora root, 8-10% of Zanthoxylum armatum and 8-10% of Alocasia macrorrhiza, performing pest control and chemical control method, and performing harvesting.