Abstract: Under strong wind, the ice-shedding process of transmission lines will produce impact effects and shorten the distance between phases, greatly increasing the possibility of electrical accidents. Based on the actual parameters of a local section of a line in Xinjiang, this paper establishes a finite element model of the ice-shedding response of a "conductor-insulator" under the action of strong winds. It analyses the displacement, unbalanced dynamic tension, and minimum distance between phases of the ice-shedding profile of transmission lines under different wind speeds and wind angles of attack. The results show that the wind angle of attack on the aerodynamic coefficient and wind load increase coefficient of the shaped ice-covered conductor has a significant effect; the dynamic tension amplitude under strong wind conditions has more than the design tensile strength, there is the possibility of wire breakage; the ice-shedding process of transmission line under strong wind is an upward skewed displacement process compared with its initial configuration position, and there is a significant decrease in the inter-phase distance. The probability of the risk of discharging is far more than that of the no wind ice-shedding condition. The probability of discharge risk during operation is much higher than that of the ice-shedding condition without wind. In this paper, the study of transmission lines under strong winds is carried out to investigate the characteristics of the ice-shedding response under complex conditions and the risk of discharge during operation to provide a certain reference for emergency anti-icing and ice-shedding technology of transmission lines under strong winds.