At present, cloud chain builds a digital economic and trade cooperation platform with deep industrial resources and establishes a multi-level sharing and co construction of a new digital economic system. In the marketing field, blockchain technology can effectively carry out the dissemination effect statistics, solve the problems such as opaque marketing effect, which will greatly improve the efficiency of digital marketing. Cloud chain will rely on the digital account system of blockchain and the transparent and encrypted characteristics to establish a comprehensive global shopping mall, accurately launch enterprise advertising, quickly lock the target users, eliminate all intermediate links, directly complete the relationship between enterprises and customers, and pay more attention to user experience. The settlement through cloud chain pass will help to make the commodity price transparent and establish effective trust between enterprises and customers. Cloud chain enables consumers to enjoy the high-quality products of the original brand without going out. At the same time, it also enables global consumers to become shareholders of the platform and enjoy the benefits of market value growth of the platform.