Abstract: Frequent extreme disasters bring great challenges to the operation of urban power grids with large-scale access to new energy. Therefore, this paper proposes a double-layer coordinated power supply restoration model for urban power grids in which intermittent new energy is considered to improve system resilience. Firstly, a method of offline probabilistic modeling and online updating of new energy is proposed, which depicts the time-varying uncertainty of its output via rolling update scenario prediction. Secondly, based on the forecast scenario, a double-layer power supply restoration model of the urban power grid is established considering load transfer. The model considers the active transmission system-distribution system collaborative optimization, and is carried out by adjusting load distribution, network reconfiguration and real-time scheduling of emergency resources. Power supply is restored to minimize system power loss. In the upper layer, the proposed two-layer power supply restoration model optimizes the operating boundary of the high-voltage distribution network and transmission system in each region. In the lower layer, the reconfiguration of the high-voltage distribution network in each region and the real-time scheduling scheme of emergency resources are obtained. Whether the calculation process is over can be judged by checking the AC power flow of the transmission network. The simulation results show that the proposed power supply restoration method can effectively improve the system resilience, ensure that the power flow of the transmission grid line does not exceed the limit, and effectively reduce the load cutting under extreme disasters.