From the perspective of the pattern, the wiring harness industry has stable cooperation with vehicle manufacturers, and the market concentration is relatively high. The development of the automotive wiring harness industry is highly dependent on the automotive industry, and most brand car manufacturers have a relatively mature and stable automotive supporting system. For a long time, the high standard requirements for components have made the cooperation between wiring harness suppliers and automobile companies relatively stable. At present, the global automotive wiring harness market is mainly composed of Japan’s Yazaki, Sumitomo Electric, Fujikura, South Korea’s Yuluo, Jingxin, and Europe and the United States’ Lenny, Aptiv, Kronberg Schubert, Dexmir, Lear Dominated by wire harness manufacturers.