With the development trend of automobile networking and intelligence, 5g communication technology has the characteristics of high speed and high capacity, which is integrated with the needs of the automobile industry. The technologies such as automobile networking and automatic driving promote the huge market demand for automobile harness and connector. New energy automobile parts will gradually develop into an important element of the whole automobile parts industry. Automobile parts are the basis for the development of the automobile industry, Automobile harness and connector is an important part of automobile parts, known as the "blood vessel and nervous system" of automobile. It is the network main body of automobile circuit and an important part of automobile. The rapid development of China's new energy automobile industry has provided a solid industrial foundation and strong market support for the automobile harness and connector industry, and has become a large global automobile harness and connector market. As an important part of the auto parts industry, auto wiring harness and connector has been promoted to an important development object in the auto industry chain. With the inclination of resources, policy support, rectification and standardization, it can be expected that the next five to ten years will be a golden period for fundamental changes in China's auto parts industry such as auto wiring harness and connector, following the vigorous development of China's whole vehicle production and consumption in the past decade.