NOVELTY - Microbial ecological brick comprises silicate cement, sludge slag coagulating material, organic fertilizer, inorganic fertilizer, microbial fertilizer and water. The organic fertilizer is composed of domestic waste and livestock manure ferment, the inorganic fertilizer is composed of urea, monoammonium phosphate, potassium sulfate or potassium chloride, and the microbial fertilizer is composed of gibberellin, cytokinin, amino acid, humic acid, Bacillus megaterium, Bacillus subtilis, yeast and Lactobacillus.    USE - Used as a microbial ecological brick.    ADVANTAGE - The microbe ecological brick comprises microbial fertilizer, which has sustainable fertilizer efficiency, and can improve the soil environment, improves soil fertility, and is non-polluting and harmless.    DETAILED DESCRIPTION - Microbial ecological brick comprises (in parts) silicate cement (50), sludge slag coagulating material (10-100), organic fertilizer (30-60), inorganic fertilizer (30-60), microbial fertilizer (5-30) and water (5-100), where the ratio of the sludge and slag in the sludge slag coagulating material is 2:1-5:1. The organic fertilizer is composed of domestic waste and livestock manure ferment, the inorganic fertilizer is composed of urea, monoammonium phosphate, potassium sulfate or potassium chloride, and the microbial fertilizer is composed of (in parts by wt.) gibberellin (0.003), cytokinin (0.0001), amino acid (10), humic acid (6), Bacillus megaterium (10), Bacillus subtilis (10), yeast (10) and Lactobacillus (10). An INDEPENDENT CLAIM is also included for preparing the microbial ecological brick comprising: (i) preparing raw material and pre-treating, (a) adding the sludge and slag into water, mixing and stirring to obtain the sludge slag coagulating material, (b) fermenting Bacillus megaterium, Bacillus subtilis, yeast and Lactobacillus to prepare mixed microbial inoculum, freeze-drying to obtain mixed microbial powder, and uniformly stirring with sterile powder and humic acid, uniformly stirring the raw materials of amino acid, gibberellin, cytokinin liquid, spraying into the mixture of uniformly mixed with powder and humic acid, stirring uniformly to obtain the microbial fertilizer; (ii) adding the sludge slag coagulating material, microbial fertilizer into an agitator to mix uniformly, gradually adding water in the stirring process until the material is changed into paste, measuring the pH, adjusting to neutral or weak acidic by acid and alkali regulator, adding into a mold, mechanically or manually extruding hole, and naturally drying.