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The wind deflection of the sealing net across the transmission line is great under the slipstream of high-speed train. Based on the existing research， the paper proposes a method to reduce the wind deflection response of the sealing net structure by using the inclined wind vibration control cable， and it establishes a numerical model of dynamic response with wind analysis model and the sealing network structure of high-speed train coupled. Moreover， it studies the effect of the inclined wind vibration control cable on the wind deflection control of the sealing net structure and compares the effect with that of the vertical wind vibration control cable without inclined guy cable. The results show that under the action of coupled high-speed train wind， the pretension of the bearing cable has a significant effect on the horizontal and vertical wind deflection of the sealing net， especially the vertical wind deflection control of the sealing net， which can be reduced by 90% or more， but the safety coefficient of the bearing cable will be reduced by excessive large pretension force； the proposed schemes of using the inclined wind vibration control cable and the vertical wind vibration control cable are about the same in the control effect， and both can effectively control the upper and lower wind deflection of the sealing network. The control effect is more significant in the working condition of smaller carrier cable pretension.