The invention discloses an insect-proofing organic fertilizer which is prepared from the following raw materials in parts by weight: 200 to 230 parts of chicken manure, 30 to 34 parts of castor bean, 20 to 23 parts of garlic stems, 10 to 12 parts of radix sophorae flavescentis, 10 to 12 parts of broadleaf sawdust, 12 to 14 parts of bones, 2 to 3 parts of plant ash, 3 to 4 parts of bran, 4 to 5 parts of talcum powder, 20 to 23 parts of urea, 40 to 45 parts of calcium superphosphate, 2 to 3 parts of borax, 5 to 6 parts of zinc sulfate, 3 to 4 parts of manganese sulfate, 2 to 3 parts of manganese sulfate, 3 to 4 parts of ammonium molybdate, 1 to 2 parts of calcium carbonate powder, 2 to 3 parts of sodium bicarbonate, 3 to 4 parts of EM (Effective Microorganism) agent, 4 to 6 parts of coating agent and a proper amount of water. The insect-proofing organic fertilizer is rich in organic nutrition, namely that the diversification of nutrient elements is realized, so that the yield and quality of a plant are improved; the soil structure and the soil fertility are also improved to a certain extent through the added raw materials, so that an important significance for promoting agricultural mechanization and ecological food sharing is achieved. Thus, the insect-proofing organic fertilizer has a broad prospect. In addition, the insect-proofing capacity and disease-resisting capacity of a crop are improved through the addition of the castor bean, the garlic stems, the radix sophorae flavescentis and the like, so that the breeding of soil microorganisms is promoted; moreover, the pollution to the environment is avoided. Thus, the insect-proofing organic fertilizer has certain economic and environmental benefits.