Relevance of the studied problem is caused by the fact that stability of natural ecosystems strongly depends on functioning of their destructive block which closes a biological circulation. The organisms that ensure functioning of the destructive block are very different and numerous. All of them partly supplement, partly duplicate functions of each other that is an important factor of reliability of this ecosystem block. Shallow arthropods are important regulators of fossils mineralization and immobilizations of various biogens. Experiments demonstrate that if there are microarthropods, humification processes amplify and the optical density of humic acids raises. The aim of the article is to show degree and depth of change of mineralization and humification processes at the interaction of microarthropods and some mesofauna representatives in the processes of transformation of organic substance of vegetable oddments on the basis of experimental research. The most popular method to a research of this problem is the creation of laboratory microecosystems which have a clear boundary, which are easily reproduced and convenient for experimenting with subsequent instrumental determination of quantitative and qualitative humification parameters. In the course of experimental work it is revealed that the activity of soil-forming invertebrates results in strengthening humification processes. Humification rates, transformation depth of organic substance directly depend on cenotic organization of destructors. It is obvious that, the more complete the composition of biodegradative agents, the more intensive the decomposition process, the stronger the humification processes prevail over mineralization, the higher their maturity degree. All above-mentioned has a huge value to preserve a long-term fertility and high agronomical soil value, both in agrophitocenosis, and in natural biogeocenosis.