Abstract: Social-cyber-physical convergence marks the transition of information technology and its application from “informatization of the natural world” to “naturalization of the information world”. Its ubiquitous, social, situational and intelligent patterns and modes call for the pivotal technical characteristics of on-demand usage of full-stack and full-network information resources. However, the existing centralized architecture of mainstream cloud platforms binds the data and service resources generated by applications to the underlying software and hardware in the vertical direction, and locks the data and service resources in the data center in the horizontal direction. Such centralized architecture restricts the deep integration and application of software, hardware, data and services of cloud, network and clients in the social-cyber-physical space, facing three major scientific issues and technical challenges, including 1) multidimensional programmability of software, hardware, data and service resources of cloud, network and clients; 2) dynamic coordination of software, hardware, data and service resources of cloud, network and clients; 3) the on-demand convergence of natural features of social-cyber-physical space and resources of cloud, network and clients. Taking the new cloud computing architecture of social-cyber-physical convergence as the key point, the project extends the software-defined mechanism of hardware resources to data and service resources in the vertical direction, and supports resources of the network and clients as well as the cloud center in the horizontal direction. This project proposes a software-defined theory for social-cyber-physical convergence, establishes a set of cloud computing technology systems for the social-cyber-physical convergence, and develops a supporting platform and a set of demonstration applications. This project will establish a software-defined theory and the cloud computing technology systems and specifications for social-cyber-physical convergence. A new cloud computing platform will be developed to access and manage hardware, software, and application resources of Android devices, Linux-based edge devices and OpenStack-based public/private clouds in the way of software-defined mechanism. Meanwhile, the demonstration applications of social-cyber-physical convergence will cover 1 million end devices from 10 different brands, and support the on-demand integration of 1,000 third-party commercial applications, showing their applications in typical fields such as smart home, intelligent transportation and so on.