Abstract :
Today, the number of China Unicom 3G subscribers has reached nearly 100 million, but it is not just about bringing various kinds of mobile internet services for these 3G subscribers. "Smart City" has been hailed by the three main telecom operators in China as a new bright spot for services. Taking advantage of networks, platforms and operating ability, China Unicom has developed more than twenty innovative services, including cloud-related services and industrial applications for the "Internet of Things". Moreover, it has taken the lead in releasing intelligent applications such as "cloud health" and "cloud meeting" and is taking full advantage of 3G networks step by step.