NOVELTY - Method for producing organic selenium-enriched melon, involves selecting field, performing weeding process, crushing components of selenium-enriched fertilizer, mixing powders, adding additive, processing and adding microbial inoculum, processing the mixture, mixing with nitrogen, phosphorous and potassium fertilizer to obtain selenium-enriched fertilizer, planting tea tree during autumn, applying selenium-enriched fertilizer, transplanting tea tree, controlling e.g. disease, planting melon plant, and performing topdressing process.    USE - The method is useful for producing organic selenium-enriched melon (claimed).    ADVANTAGE - The method cost-effectively improves nutritional components of melon plant, and absorption rate of selenium by melon plant and hence the selenium content of melon plant is more than 0.26 mg/kg and the content of organic selenium of the melon plant is more than 80%, and is suitable for large-scale production.    DETAILED DESCRIPTION - Method for producing organic selenium-enriched melon, involves (a) selecting field provided with garden fertile soil, and performing weeding process, where content of organic matter in the garden soil is more than 2% and pH of the soil is 4.5-6.5, (b) crushing components of selenium-enriched fertilizer, uniformly mixing obtained powders, uniformly stirring obtained mixture, adding additive to the mixture, stirring the mixture, adding water to the mixture, regulating pH of the mixture to 6.5-7.5, adding microbial inoculum to the mixture, uniformly stirring obtained mixture, covering the mixture using plastic film, fermenting the mixture for 7-14 days, adding Aspergillus oryzae and Bacillus subtilis to the mixture, uniformly stirring obtained mixture, covering the mixture using plastic film, fermenting the mixture for 4-7 days to obtain microbial fertilizer, and mixing the microbial fertilizer with nitrogen, phosphorous and potassium fertilizer which comprises nitrogen, phosphorous and potassium in a ratio of 20-50:1-4:0.1-1 to obtain selenium-enriched fertilizer, (c) planting tea tree during autumn, and applying 10-20 kg selenium-enriched fertilizer/mu of field, (d) transplanting tea tree, (e) controlling insect pests and disease in the field, (f) planting melon plant on the field, and performing topdressing process using 10-20 kg selenium-enriched fertilizer/mu of the field, and (g) again performing topdressing process using 15-40 kg selenium-enriched fertilizer/mu of the field. The microbial inoculum comprises one or more of silicate bacteria, B.thuringiensis, B.subtilis, yeast and Trichoderma viride.