Abstract: To reflect the influence of renewable energy and power communication coupling on cascading failures, this paper proposes a modeling method for cascading failures of power communication coupled network with wind power considering system operating state transition. First, the coupled network model is established considering the structural coupling and functional dependencies of the power network and the communication network. Second, the state transfer process under coupled network cascading failures is analyzed. Then, the communication service failure assessment model and simulation models of power failures and control measures under each operating state are established respectively. Among them, the overload control process in the preventive state is proposed by considering the communication control service state and the uncontrollability of wind power output. At the same time, the frequency optimization control model in the emergency state is established by considering the power balance constraints of source-load uncertainty. Finally, the cascading failure model of coupled network with wind power is developed based on the sequential logic of faults and control measures and the relationship with operating states. The example offers five typical modes of coupled system operating state transition, and analyzes the impact of wind power uncertainty and other factors on the consequences of cascading failures, providing a theoretical basis for improving the robustness of coupled networks.