With the aim of building smart cities, we have proposed a smart integration solution to break the “information silo” due to independent information systems used by different administrative departments, and replace traditional information systems with a public information cloud sharing platform to share computing resources and data. Additionally, this solution can be used to achieve data visualization through Big Data analysis, thereby offering dynamic prediction and decision making support for decision makers and other management departments. It will also guarantee city operations in terms of monitoring management, information sharing, and event response and resource allocation to improve value through smart integration.