Abstract: Livestock production system is an artifical ecosystem.The main goal of modern animal husbandary is to establish the livestock production system with high efficiency,stability and good hological function.The stablilzing machanisms for livestock production system include internal homeostatic mechanism and external adjustable mechanism.The internal homeostatic mechanism is composed of comformability,diversity,substitutibility and homogeneity of ecological niche.The external adjustable mechanism mainly means the equal adjustment mechanism.