The invention discloses a special fertilizer for wampee and a preparation method of the special fertilizer. The special fertilizer is prepared from the following ingredients in parts by weight: 20 to 25 parts of urea, 10 to 12 parts of diammonium phosphate, 16 to 18 parts of potassium sulphate, 1 to 1.5 parts of slaked lime, 0.5 to 1 part of magnesium sulfate, 1 to 1.5 parts of potassium sulphate, 1 to 1.5 parts of boracic acid, 0.01 to 0.1 parts of citric acid chelated zinc, 0.01 to 0.1 parts of copper sulfate, 0.01 to 0.1 parts of manganese sulfate heptahydrate, 0.01 to 0.1 parts of sodium molybdate, 0.01 to 0.1 parts of ferric trichloride, 0.1 to 0.2 parts of amino acid chelated selenium, 5 to 8 parts of disinfection insecticide, 4 to 6 parts of crop straw, 5 to 8 parts of thoroughly decomposed animal excrement and 3 to 5 parts of peanut hull powder. The special fertilizer has the advantages that the proportion content is reasonable; medium-element calcium, magnesium and sulphur fertilizers, trace-element boron, zinc, copper, manganese, molybdenum and ferrum fertilizers and amino acid chelated selenium fertilizers are contained; meanwhile, the sterilization pesticide, the crop straws, the thoroughly decomposed animal excrement and the peanut hull powder are contained; the effect of eliminating plant diseases and insect pests for fruit trees is achieved; rich nutrition ingredients are also provided for wampee fruit trees; in addition, the utilization rate of the fertilizer is improved; wide development prospects and good economic benefits are realized.