Abstract: During disasters, islands created by partitioning distribution networks may face inadequate elastic support capacity, leading to power regulation imbalances and even system collapse. This study proposes an elastic emergency response strategy for island partitioning in distribution networks during disasters. Firstly, considering the fluctuation characteristics of wind and solar power sources, a distributed energy model for wind-solar-storage systems is established. Additionally, considering the aggregation of source-load dual attributes and the impact of traffic flow of electric vehicle clusters, a time-varying aggregation battery model for electric vehicles is developed. Secondly, aiming to minimize switch operations and the number of load nodes experiencing power loss, a new island partitioning model for distribution networks is proposed. This model coordinates new energy sources, electric vehicles, and energy storage stations. By applying constraints such as power output and load fluctuations, an optimization solver is employed to maximize the emergency elastic recovery capacity of islands during disasters. Finally, a case study of a distribution network system in a certain city in Xinjiang is used for simulation verification. The results indicate that the proposed strategy reduces the cost of partitioning new distribution network islands while enhancing the emergency recovery capability of the distribution network during disasters and improving system operational resilience.