The invention discloses a compound microorganism fertilizer containing seventeen elements and three microorganisms. The compound microorganism fertilizer comprises components as follows: bean cakes, cottonseed cakes, tobacco powder, livestock manure, humic acid, thermophilic sporotrichum, bacillus subtilis, silicate bacteria, abamectin, urea, monoammonium phosphate, potassium sulfate or potassium chloride, calcium powder, magnesium oxide, copper sulfate, ferrous sulfate, zinc sulfate, manganese sulfate, boric acid and ammonium molybdate. The compound microorganism fertilizer has the benefits as follows: the utilization rate of the compound microorganism fertilizer can be increased by more than 35% by comparison with common fertilizers, soil microorganisms can be activated and soil hardening can be gradually relieved or eliminated, saline-alkali land, sand land, yellow clayey land and slurry land can be completely improved, the compound microorganism fertilizer takes effect in the first year once applied, the land is turned into fertile farmland in 2-3 years, meanwhile, soil insects can be killed, the stress resistance of plants can be improved, crops can sufficiently absorb and utilize various elements, environmental pollution cannot be caused, produced agricultural products meet the standards for green food and pollution-free food, the yield of grain crops can be increased by 10%-20%, and the yield of economic crops can be increased by 30%-50%.