The invention discloses a fertilizer special for rice breeding. The fertilizer special for rice breeding comprises the following raw materials in parts by weight: 20-50 parts of cow dung, 3-20 parts of kelp residue, 30-50 parts of peat, 30-50 parts of urea, 3-11 parts of ammonium dihydrogen phosphate, 2-9 parts of sodium pyrophosphate, 3-11 parts of potassium fulvic acid, 2-8 parts of potassium 4-butanoate, 2-5 parts of calcium nitrate, 1-3 parts of zinc citrate, 2-4 parts of copper sulfate, 2-5 parts of manganese sulfate, 1-3 parts of ferrous sulfate, 2-5 parts of sodium molybdate, 2-5 partsof boric acid, 1-5 parts of a microbial agent, 1-3 parts of chitosan, and 10-35 parts of modified montmorillonite. The fertilizer special for rice breeding is reasonable in formula, complete in nutrition, good in slow-releasing effect, high in utilization rate, and capable of promoting the growth of breeding rice, and increasing the breeding yield.