The invention discloses a production method of water flush fertilizer containing dual-acid chelating-type trace elements, which belongs to the manufacturing field of the composite fertilizer. The fertilizer product is produced by adopting following raw materials that: ammonium nitrate, monoammonium phosphate, potassium sulphate, soil conditioning agent, growth promoter, fruit coloring swelling agent, active root promoting agent, nitro-humic acid, humic acid magnesium, humic acid zinc, humic acid urea iron, amino acid chelating boron, amino acid chelating copper, amino acid chelating manganese, amino acid chelating molybdenum, amino acid chelating calcium and microorganism strain. The fertilizer has main advantages that the fertilizer is uniform and safe to apply; the fertilizer is convenient to apply and free from damaging the roots; rapidness in absorption is realized, and the fertilizer effect is good; and the fertilizer has advantages for improving the soil structure, conditioning the plant variation adaptability, enhancing the absorption capacity of the plants, promoting the formation of plant chlorophyll and guaranteeing the crop yield and income increment.