The shielding covers for electronic devices play a crucial role in modern electronic products, not only effectively blocking electromagnetic interference (EMI) and electromagnetic radiation (EMC), but also enhancing the overall performance and reliability of the equipment through optimized design and advanced materials. With the continuous advancement of technology, the function of shielding covers has expanded beyond just electromagnetic shielding; they now also serve multiple purposes such as heat dissipation, shock resistance, and mechanical protection, ensuring the stable operation of devices in high-speed, high-frequency, and complex electromagnetic environments. Using highly conductive materials like copper, aluminum, and composite metals, shielding covers effectively suppress interference and provide excellent Thermal Management performance. Meanwhile, as the demand for miniaturization and lightweight designs increases, the selection of materials and processes has shifted towards high-performance composite materials and eco-friendly metal coatings, further improving the space utilization and environmental sustainability of devices. Modern shielding covers also emphasize precise structural design, incorporating features like ventilation holes, thermal conductive materials, and flexible structures to ensure the thermal efficiency and mechanical strength of the device. At the same time, in response to growing environmental requirements, shielding covers are made from recyclable materials and designed to reduce waste emissions, promoting the sustainable development of the electronics industry. In summary, shielding covers are not only the core of electromagnetic compatibility solutions but also key components in improving the performance, extending the lifespan, and ensuring the efficient operation of electronic devices