Microbial fertilizer is a living fertilizer, its role mainly depends on it contains a large number of beneficial microbial life activities to complete.Only when these beneficial microorganisms are in vigorous reproduction and metabolism, material transformation and beneficial metabolites can be continuously formed.Therefore, the types of beneficial microorganisms in microbial fertilizers and whether they thrive are the basis of their effectiveness, unlike other fertilizers, which are based on the form and amount of major elements such as nitrogen, phosphorus and potassium.Because microbial fertilizer is a live preparation, its fertilizer effect is closely related to the number, strength and surrounding environmental conditions of live bacteria, including temperature, water, ph, nutritional conditions and the original living in the soil rejection of indigenous microorganisms have a certain effect, so attention should be paid to the application.