Multi-energy complementary and coordinative operation can effectively improve the comprehensive utilization of energy, which can not only promote the consumption of renewable energy, but also effectively reduce energy costs and improve the reliability of energy use. The electric-thermal coupling multi-energy system is an important form of multi-energy complementary coordination, which is prevalent and continues to develop in the northern region of China. Therefore, the study of multi-time-scale modeling of electrothermal coupled energy network is of great significance to improve the anti-jamming ability of the whole system and strengthen the interaction between systems.