Nkn (new kind of network) is a new network infrastructure and ecosystem driven by blockchain technology, which is open, decentralized and shared by communities. Nkn encourages users to share excess network bandwidth, assists equipment service providers to effectively allocate network resources, and encourages individuals and enterprises to deploy more nodes to join the network to provide data transmission services for other nodes, so as to obtain economic returns. The goal of Nkn is to use blockchain technology to create new opportunities for network transmission and solve the problems of resource allocation, transmission efficiency and value transmission in the current network. After the Ethereum blockchain computing capability and filecoin/ipfs blockchain storage capability, it has become a public chain infrastructure that blockchain another core element of information technology - network transmission resources. Its technical innovation lies in dynamic routing, network relay proof, highly scalable consensus mechanism and resource sharing incentive. Nkn token is the original token in the Nkn ecosystem economy, which is used to encourage network resource sharing and effectively use excess network broadband.