In today's era of rapid technological development, the pace of electronic product updates and replacements is becoming increasingly fast. From smartphones to computers, from smart home devices to industrial automation systems, a large number of electronic products not only bring great convenience to our lives and work, but also generate an alarming amount of electronic waste, among which PCB boards (printed circuit boards) and integrated circuits are important components of electronic waste. Effective recycling and processing of them not only relates to the rational utilization of resources, but also is closely related to environmental protection. PCB boards are key components of electronic devices, providing electrical connections and mechanical support for electronic components. Integrated circuits are the core of modern electronic technology, integrating a large number of transistors and other electronic components to achieve complex electronic functions. However, when these electronic products reach the end of their lifespan or are discarded due to malfunctions, PCB boards and integrated circuits, if disposed of indiscriminately, will cause serious environmental problems. PCB boards contain various heavy metals such as lead, mercury, and cadmium. Once these heavy metals enter the soil and water sources, they will cause long-term harm to the ecological environment and human health. Integrated circuits also contain some rare metals and harmful substances. If not handled properly, they will also pollute the environment. Moreover, PCB boards and integrated circuits also contain a large amount of valuable resources such as copper, gold, and silver. Taking gold as an example, the amount of gold contained in one ton of waste circuit boards is much higher than that in one ton of gold ore. Therefore, the recycling and processing of PCB boards and integrated circuits is of great economic value and environmental significance. At present, there are various technologies and methods for the recycling and processing of PCB boards and integrated circuits. Physical processing methods are a common one, which mainly separates various components of PCB boards and integrated circuits through steps such as crushing, screening, magnetic separation, and gravity separation. This method is relatively simple to operate, has low cost, and does not cause secondary pollution. Chemical processing methods use various chemical reagents to dissolve the metals in PCB boards and integrated circuits, and then purify the metals through a series of chemical reactions. This method can efficiently recover metals, but attention should be paid to the use and processing of chemical reagents to avoid polluting the environment. Biological processing methods are an emerging recycling technology that uses the metabolic action of microorganisms to dissolve and extract metals. This method has the advantages of environmental protection and energy conservation, but it is still in the research and experimental stage and has not been widely applied. In order to achieve the sustainable development of PCB boards and integrated circuits recycling and processing, the joint efforts of governments, enterprises, and society are needed. Governments should strengthen the formulation and implementation of relevant laws and regulations, regulate the recycling and processing market, and promote the establishment of a sound e-waste recycling system. Enterprises should increase investment in technology research and development, improve the efficiency of recycling and processing, and resource recovery rate, while strictly adhering to environmental standards and reducing environmental impacts. The public should also enhance their awareness of environmental protection and actively participate in e-waste recycling activities, handing over waste electronic products to formal recycling and processing institutions. The recycling and processing of PCB boards and integrated circuits is a win-win path of resource regeneration and environmental protection. Through scientific and reasonable recycling and processing technologies and the joint efforts of all parties, we can transform electronic waste into valuable resources, reduce environmental pollution, and contribute to the future of sustainable development. Let's take action together, pay attention to the recycling and processing of PCB boards and integrated circuits, and do our part in protecting the Earth's home.