Abstract: Extreme high-temperature weather will cause cable insulation to age or intumesce, which will threaten the safe operation of cable urban distribution networks. In order to enhance the ability of cable distribution networks against extreme high-temperature climate, a resilience enhancement strategy of cable urban distribution networks is proposed. Firstly, the failure models of cable line and cable joint are established to quantify the influence of high-temperature on cable insulation life and cable joint pressure, and then the failure rate of the whole cable line is calculated. Secondly, cable distribution network loss, cable line disaster response contribution, and critical load recovery are proposed and normalized to be the objective function on the basis of the characteristics of mass faults in cable distribution network under extreme high-temperature. Combined with constraints including controllable limits for operating temperature of cable lines, a resilience enhancement optimization model considering the high-temperature cable treatment measures and power supply restoration means of distribution network is established to realize the rapid recovery of mass faults of cable distribution network under extreme high-temperature disaster. Finally, the feasibility of the proposed strategy is verified by using a 10 kV urban cable distribution network.