With the continuous improvement of human requirements for living environment, the environmental issues involved in the current PCB production process have become particularly prominent. Currently, the topics related to lead and bromine are the most popular; Lead free and halogen-free will affect the development of PCBs in many aspects. Although the changes in the surface treatment process of PCBs are not significant at present and seem to be relatively distant, it should be noted that long-term slow changes will lead to significant changes. With the increasing demand for environmental protection, the surface treatment process of PCBs will definitely undergo tremendous changes in the future.