Abstract: The stability characteristics of AC-DC hybrid power grids with high proportion of renewable energy have profound changes, and rotor angle stability remains a key issue that threatens the operation safety. Related studies have required higher demands on authenticity, rationality and representativeness of the benchmark test system. In this paper, the rotor angle stability benchmark test system, designed specifically for electromagnetic transient simulation, is constructed based on the practical topology and data. The main grid voltage level of aforementioned benchmark is 500 kV and this benchmark includes 2 regions, i.e. 1 AC transmission channel and 1 DC transmission channel. Two basic operation modes are provided, corresponding to dynamic and transient rotor angle stability, respectively. The penetration level of renewable energy in the above operation modes is above 50%. To study the influence of different factors on the rotor angle stability level, the penetration of renewable energy, generator location and control strategy are used to obtain the quantitative analysis. Then, sensitivity analysis results show that this electromagnetic transient simulation benchmark is able to comprehensively reflect the characteristics of different rotor angle stability, and it has flexible extensibility. Sharing the benchmark test system can provide a basic platform for related research of rotor angle stability analysis and control, and contribute to the horizontal comparison of different conclusions as well as the improvement of research efficiency.