The utilities of Cloud Computing have an essential role in e-government affairs because they can reduce the cost of using information technology services and allow users to access services anytime and anywhere. The success factor of e-government requires leadership, significant funds and the ability to overcome the risks faced by governments. In several government agencies, such as Ministries or Local Governments in developing countries, cloud computing is still not widely adopted compared to other developed countries. In order to build cloud computing adoption, it is crucial to recognize that an essential and specific issue related to cloud computing is the potential and perceived security risks posed by the adoption of the technology. Cloud computing is an option that can provide e-government with lower infrastructure costs and less initial investment than traditional systems. Cloud computing in e-government offers excellent benefits, despite its many risks. Therefore, the main objective of this paper mainly focuses on analyzing the benefits and risks associated with cloud computing in e-government affairs. In this paper, researchers conducted a systematic review (SR) research method to identify the 12 benefits and 8 risks of cloud computing in e-government affairs. Then, these government organizations can benefit significantly from cloud computing.