Insulation manufacturing is upgrading towards high-performance, intelligence, and greenness. In terms of materials, new products such as nano-composites, high-temperature-resistant polyimides, and environmentally friendly vegetable oil insulation are constantly emerging, suitable for scenarios such as new energy vehicles, wind power, and ultra-high voltage. In terms of processes, 3D printing, automatic pressure gel (APG), and AI intelligent detection technology applications enhance precision and efficiency. At the same time, low VOC, degradable materials, and energy-saving processes have become key focuses, driving the industry towards safety, efficiency, and environmental protection.