To explore the dynamic wind-induced deflection of jumper wires on tension transmission towers under fluctuating winds and its characteristics, and provide a theoretical method for analyzing flashover tripping incidents in transmission lines, two scenarios are analyzed: jumper wire without jumping string and jumper wire with jumping string. The response of jumper wire under fluctuating wind is assumed to be small deformation and the effects of its vibration mode is ignored. By ensuring the resultant moment of studied objects on target axis is zero and considering the aerodynamic damping effects, the dynamic equations for wind-induced deflection of jumper wires on tension towers are established based on the d'Alembert’s principle. These equations can be solved by fourth-order Runge-Kutta method. Through case analysis, it is observed that the two models are effective in calculating the time history of jumper wires’ wind-induced deflection. Additionally, upon comparing with the wind-induced deflection of suspension insulator strings on tangent towers, it is found that jumper wires’ wind-induced deflection exhibits a higher frequency and a larger range of fluctuations. Moreover, the jumping strings exert a restraining effect on the wind-induced deflection of the jumper wires. As the mass of the jumping string increases, the dynamic wind deflection angle of the jumper wire decreases, thereby reducing the risk of flashover tripping incidents.