The invention discloses a manufacturing technique of a balanced-nutrition seedling cultivation fertilizer. The fertilizer comprises the following raw materials in parts by weight: 5-20 parts of urea, 5-25 parts of ammonium sulfate, 1-8 parts of ferrous sulfate, 10-25 parts of calcium superphosphate, 1-8 parts of zinc sulfate, 1-15 parts of sulfur, 0.5-5 parts of Dittany Bark, 0.01-0.2 part of malathion, 0.5-5 parts of radix rehmanniae, 5-20 parts of rape seed cake, 0.5-5 parts of moutan bark, 5-35 parts of plant ash, 0.5-5 parts of skunk bugbane, 0.1-5 parts of ferment, 0.5-5 parts of nutshell, 5-35 parts of vinasse, 0.5-5 parts of herba violae, 10-40 parts of weed and 5-30 parts of rice bran. The technique comprises the following steps: grinding the plant ash into a paste, adding vinasse, and grinding to obtain a mixed thick paste; adding the weed and rice bran into the mixed thick paste to obtain a mixture; and fermenting the rape seed cake and ferment to obtain a fermentation product, adding the fermentation product into the mixture, adding the rest raw materials, drying and pulverizing. The technique can enhance the stocking percent, reduce the disease and pest damage and improve the soil, thereby shortening the seedling recovering time and saving the production cost. The nutrient elements are absorbed in a balanced mode in various growth periods of the seedlings.