MIMI is a 5G network combined with blockchain technology to collect big data such as people's daily online consumption, life education, investment and financial management, and entertainment sharing in the network ecology. After the data is classified and analyzed, it provides Give data demanders (such as Amazon, Walmart, etc.) to obtain rewards for data providers. The reward is the MiChain token (MIMI). MiChain realizes the application of the Internet of Things and blockchain technology. It can be used for shopping in malls, educational games, free exchange of Bitcoin and Ethereum, etc.