Abstract: The integration of a high proportion of renewable energy into power systems brings new challenges to the design of simulation scenarios for conventional power systems as a result of its fluctuation characteristics. This paper analyzes the characteristics of existing renewable energy generation, energy storage methods, and the impact of the integration of renewable energy into the grid on power systems, and proposes the scenario elements for high-proportion renewable energy power systems. Based on renewable energy installation, renewable energy proportion, and load variations, the paper provides a scenario segmentation approach, which incorporates node classification, node voltage, and power flow as constraints for scenario calculation. This paper also analyzes the effects of increased penetration rates of high-proportion renewable energy on power balance and voltage stability in the new power system. In the case study, a 30-node standard power system which is integrated with a high proportion of renewable energy is used and the effectiveness of the proposed scenario design method is validated.