Micro-ecological formulation and preparation method thereof

The invention relates to the technical field of recycling waste water produced by fermenting vitamin B12, and discloses a microbial ecological agent and a preparation method thereof. The invention more particularly relates to a microbial ecological agent product prepared by taking the waste water produced by fermenting vitamin B12 as raw material through the fermentation process of lactobacillus, microzyme and bacillus. Furthermore, the product is applied for nuisanceless agriculture; the invention develops the usage of the waste water of vitamin B12, so as to change waste into valuable and realize zero emission in the process of producing waste water by fermenting vitamin B12.