Network capability exposure Operators, as traditional communication service providers, are trying to change their roles in new industrial cooperation to increase new profit points. Network capability exposure is one of the important ways. The opening of 5G network capabilities will have richer connotations. In addition to the opening of internal network information, QOS control, network monitoring capabilities, and basic network service capabilities defined by 4G networks, network virtualization, SDN technology, and big data analysis The introduction of capabilities also provides 5G networks with richer network capabilities that can be opened, such as the orchestration and management capabilities of network slicing. The opening of network capabilities should be combined with specific business scenarios, and comprehensively consider the differences in system architecture and business logic of third-party application platforms, so as to achieve simple and friendly opening. In addition, the opening of network capabilities must be flexible enough. With the further enrichment of network functions, network capabilities can be continuously opened to third-party applications without making complex changes to third-party platforms and network systems themselves. Opening of network capabilities mainly includes: (1) openness of network and user information; (2) openness of wireless services and network resources; (3) openness of network computing resources. Under the new industry model, it is imperative for operators to realize the opening of network capabilities, including the service domain, platform domain and network domain.