In recent years, under the trend of continuous internal competition in the domestic automotive industry, intelligent assisted driving systems have become the core competitive point for various automakers and the biggest highlight of new car releases. From L1 and L2 assisted driving to L3 autonomous driving, the system mainly relies on the fusion of perception cameras, radar parking assistance systems, and GPS high-precision maps, enabling vehicles to quickly obtain surrounding conditions and automatically identify driving routes. However, the real-time and accurate response of the system mainly depends on the continuous iteration and updating of software and hardware, as well as the speed of data transmission. High speed wiring harnesses have advantages such as high transmission speed and strong anti-interference ability. Taking CAN network transmission as an example, the maximum transmission speed of high-speed wiring harnesses is 500 times that of CAN networks. Based on this feature, high-speed wiring harnesses will be an indispensable part of information transmission in intelligent assisted driving systems. This article discusses the introduction of intelligent assisted driving and the application of high-speed wires.