Chunks were originally proposed in cognitive theory as the smallest unit of language memory and storage,output and use,which conforms to cognitive laws and can effectively reinforce cognitive operations.A network is a graph composed of several nodes and edges,representing many objects and their interrelationships.As an emerging hot science,complex networks are a discipline that explains the existing network phenomena and their complexity.The language network is an extremely complex network.The complex network theory and methods are used to quantitatively describe and qualitatively analyze the structure of Chinese chunks,the Chinese"N+N"chunk network is a small world network,with a degree distribution following a power-law distribution,and is a scale-free network.From a biological perspective,block networks are highly influenced by human usage and belong to social networks.