Flexible printed circuit boards (FPCs) have the characteristics of small size, light weight, easy assembly, and resistance to bending. The core demand of new energy vehicles is range. By replacing traditional enameled wires with FPC, weight can be significantly reduced, allowing for increased range with the same battery capacity. At present, FPC is mainly used for bottom level body devices or car devices such as LED headlights, transmissions, BMS, car displays, entertainment information systems, etc., with 2 and 3 layers as the main layers. Driven by the four major trends of networking, entertainment, energy conservation, and safety, the application of LED headlights, entertainment information systems, image sensors, etc. in automobiles will be further enhanced, and the application prospects of automotive FPC are very bright.