Security is an important component of 5G ecosystems and a key basic condition for 5G development

which should be fully considered in the early stage of 5G networks and business development. This paper introduces the security advantages of 5G

describes the challenges faced by 5G security

analyzes the 5G security technology architecture and security requirements

and proposes the suggestions for 5G security development. It is aimed provide reference for 5G ecological related parties to carry out network construction

business operation

and security supervision.