Preparation method of microbial-ecological foliar fertilizer promoting plant growth and controlling pest

The invention discloses a preparation method of a microbial-ecological foliar fertilizer promoting plant growth and controlling pest. The method comprises the following steps: separately cultivating bacillus, lactic acid bacteria, rhodopseudomonas palustris with the cell concentration of over 10 billion/ml and a bacteria liquid of yeast with the cell concentration of over 2 billion/ml; and mixingthe mixed solution of the four kinds of probiotics with abamectin of a certain proportion to obtain the liquid microbial-ecological foliar fertilizer with the total cell concentration of over 8 billion/ml. The method disclosed by the invention has the advantages that: all strains adopted are edible probiotics of human beings, safe and nontoxic; abamectin is a macrolides insecticidal antibiotic agent, and has the characteristics of high efficiency, low toxicity, no pollution, lasting effect and the like; the prepared microbial-ecological foliar fertilizer integrates the advantages of probiotics in promoting plant growt