The invention discloses a feeding type micro-ecological preparation and application thereof. Active ingredients of the feeding type micro-ecological preparation consist of Lactobacillus casei, monilia tropicalis and bacillus subtilis. The feeding type micro-ecological preparation is large in bacterium carrying amount, stable in structure, and capable of promoting intermediate propagation of infusorian after a goat is subjected to rumen acidosis, enabling the content of volatile fatty acids in goat rumen fluid to continuously increase, restoring the digestive ability of the goat to cellulose-type feed, shortening the restoration process, and effectively alleviating the rumen acidosis symptom of the goat. By adopting the feeding type micro-ecological preparation, the rumen internal environment of the goat can be quickly rebuilt, the physiological function of the goat is restored, and important significance for animal husbandry production is achieved.