This paper discusses the classification rules of chaos in 3-dimensional quadratic autonomous systems. The author develops a new effective classification and provides a basic classification framework. Based on regulatory network

the research first views a chaotic system as a regulatory network in which every node corresponds uniquely to a variable in the chaotic system. Then

it studies the relationship between regulatoy networks of 3 nodes and 3-dimensional autonomous chaotic system of polynomial type. Finally

the paper classifies 3-dimensional autonomous chaotic systems of polynomial type from the viewpiont of regulatory network.