NOVELTY - Microbial fertilizer comprises antibiotic bacterial residue as base material. The microorganism is used to carry out solid microbial fermentation of material. The material is fiber-rich plant waste such as straw, distilled grains, fruits and vegetables residue, dregs, trees, shrubs, branches, vines, leaves, roots, bark, needles, grass, Houttuynia, licorice, wheat, wheat straw, sugarcane bagasse, Miscanthus, corn, corn stalks, corn husks, corn grain, corn cobs, stems canola, soybean stalk, sorghum, corn, wheat bran, paper, pulp or oat hulls.    USE - Microbial fertilizer for soil remediation (claimed).    ADVANTAGE - The microbial fertilizer improves soil fertility, and resolves problem of soil compaction.    DETAILED DESCRIPTION - Microbial fertilizer comprises antibiotic bacterial residue as base material. The microorganism is used to carry out solid microbial fermentation of material. The material is fiber-rich plant waste such as straw, distilled grains, fruits and vegetables residue, dregs, trees, shrubs, branches, vines, leaves, roots, bark, needles, grass, Houttuynia, licorice, wheat, wheat straw, sugarcane bagasse, Miscanthus, corn, corn stalks, corn husks, corn grain, corn cobs, stems canola, soybean stalk, sorghum, corn, wheat bran, paper, pulp or oat hulls. The amount of material and antibiotic bacterial residue is 45-100 pts. wt. each, and has moisture content of 60-90%. The microorganism is cellulolytic bacteria such as Aeromonas, Streptomyces, Nocardia cellulans, Trichoderma viride, Clostridium thermocellum, and Bacillus natto, Saccharomyces cereviseae and Lactobacillus plantarum. The concentration of cellulolytic bacteria is 2-8x 1010 colony forming unit/kg. The concentration of Bacillus natto, Saccharomyces cereviseae and Lactobacillus plantarum is 1-8x 1-11 colony forming unit/kg, 1-8x 1-11 colony forming unit/kg and 1-80x 1011 colony forming unit/kg, respectively. The residue has 20-80 mesh particle size. An INDEPENDENT CLAIM is included for a method for preparing microbial fertilizer, which involves mixing 45-100 pts. wt. antibiotic bacterial residue, 45-100 pts. wt. waste, 2-8x 1010 colony forming unit/kg cellulolytic bacteria, 1-8x 1-11 colony forming unit/kg Bacillus natto, 1-8x 1-11 colony forming unit/kg Saccharomyces cereviseae and 1-80x 1011 colony forming unit/kg Lactobacillus plantarum under 0.2-0.8 ventilation volontaire maximale with stirring at 25-50 degrees C having 5-15% oxygen content at 6.5-8 pH for 2-5 days to obtain microbial fertilizer.