The invention provides a special rapeseed fertilizer consisting of the following raw materials in parts by weight: 40-50 parts of agricultural straws, 20-30 parts of enveloped sulfur urea, 10-12 parts of monoammonium phosphate, 10-12 parts of enveloped ammonium sulfate, 16-18 parts of enveloped potassium chloride, 20-30 parts of plant ashes, 1-2 parts of manganese sulfate, 1-2 parts of ferrous sulfate, 1-2 parts of magnesium sulfate, 0.1-0.5 part of zinc sulfate, 0.1-0.3 part of boric acid, 10-12 parts of cinerite, 5-7 parts of wood charcoals, 3-4 parts of neem fruit powders, 3-4 parts of radix stemonae powders, 10-15 parts of bagasse, 10-15 parts of quartz sands, 18-22 parts of decomposed coals, 3-4 parts of carboxymethylcellulose, 15-20 parts of 30% of sulfuric acid, 5-10 parts of limes, 10-15 parts of animal hairs and 4-6 parts of wintergreen oil. The special rapeseed fertilizer is prepared by a method comprising the following steps: conducting acidolysis on hairs to generate amino acid, then generating a micro element fertilizer liquid and an intermediate element fertilizer liquid chelated with amino acid, then sintering the quartz sands to prepare a fertilizer carrier, fermenting an organic fertilizer, mixing a nitrogen-phosphorus-potassium fertilizer, the carrier, the organic fertilizer and a vegetable insecticide, then granulating, and finally adopting the wintergreen oil for enveloping. According to the special rapeseed fertilizer provided by the invention, the fertilizer utilization ratio is improved obviously, the slow release effect is achieved, the fertilizer application amount is lowered, the pesticide residual is lowered, the output and the quality of winter wheat are improved, and the effects of turning waste into wealth and recycling economy are realized.