The invention belongs to the technical field of fertilizer, and particularly relates to a fertilizer preparation auxiliary material with insect repellent and slow release effects and a production method of the fertilizer preparation auxiliary material. The fertilizer preparation auxiliary material comprises the following raw materials in parts by weight: 50-60 parts of active humic acid powder, 15-20 parts of biochar powder, 10-15 parts of decomposed chicken manure, 0.5-0.8 parts of trace elements, 12-16 parts of calcium magnesium phosphate fertilizer, 5-10 parts of potassium polyphosphate, 1-2 parts of Actinobacteria, 2-4 parts of Bacillus mucilaginosus, 5-8 parts of dry alcoholic waste liquid powder, 8-10 parts of tobacco powder, 2-3 parts of lignin and 15-20 parts of bentonite. The produced fertilizer preparation auxiliary material is used for preparing fertilizer or is added to the fertilizer for mixed use and has the functions of fixing nitrogen, removing phosphorus, removing potassium, dispelling pests, increasing the utilization rate of the fertilizer, supplementing nutrient elements and the like, and after being applied to the soil, the fertilizer prepared from the fertilizer preparation auxiliary material can achieve the effects of increasing the content of organic matter in soil, improving physical and chemical properties of the soil, promoting growth of crops, enhancing drought resistance, cold resistance and disease and pest resistance and increasing the yield of the crops.