Compared to traditional IT test results, the function and performance test results based on a cloud computing platform for the SCADA/ERP system show that the system meets the actual operational needs of the power grid. Certain indicators, such as network load-carrying capacity, are superior to those of traditional IT systems. The results of functionality, performance, and stress tests demonstrate that deploying SCADA system software on a cloud computing platform aligns with real-time requirements, enabling the system to meet modern demands. Furthermore, reliability function tests, including live migration of virtual machines, fault recovery, and security monitoring features, were successfully carried out. The system's reliability meets the requirements of the power SCADA system.