The invention discloses special organic / inorganic composite biological pesticide fertilizer for mulberry. The fertilizer consists of the following raw materials in percentage by weight: 18-23 parts of fowl manure, 12-16 parts of cow dung, 12-26 parts of sheep manure, 10-15 parts of straw, 5-10 parts of peat soil, 6-12 parts of animal bone meal, 6-9 parts of tree leaves, 5-8 parts of mushroom slag, 14-16 parts of urine, 11-13 parts of calcium superphosphate, 13-15 parts of calcium nitrate, 9-12 parts of potassium sulfate, 0.07-0.11 part of ammonium molybdate, 1.8-2.2 parts of copper sulfate, 0.9-1.3 parts of manganese sulfate, 4-6 parts of ferrous sulfate, 11-14 parts of potassium humate, 5-7 parts of egg shell powder, 0.05-0.1 part of borax, 13-15 parts of goose feather, 5-6 parts of microorganism yeast, 9-12 parts of celastrus orbiculatus, 5-6 parts of azadirachtin and 5-7 parts of monkshood. The composite biological pesticide fertilizer has the advantages of being remarkable in yield increase benefit, integrated in fertilization and sterilization, environment-friendly and free from pollution.