The article explores the role of SMT and DIP technology in manufacturing PCBAs for smart home appliances such as smart air conditioners, refrigerators, and lighting systems. It details the equipment configuration, production capacity, energy usage, and process flow of a full SMT and DIP line. It also highlights the importance of AI, IoT, and sustainable features in modern smart home electronics. With growing global demand, manufacturers must adopt efficient, scalable, and precision-driven PCBA solutions.