Tin slag recycling is an essential activity. Tin slag refers to the waste produced during wave soldering production, containing a high tin content. Due to the limited nature of tin resources, recycling tin slag can effectively conserve resources and reduce environmental damage. Moreover, the tin in the slag can be reused, promoting the development of a circular economy through the recycling and production of tin materials. To achieve tin slag recycling, various methods such as physical separation, chemical recovery, and smelting can be employed. These methods can effectively extract and separate tin elements, achieving the goal of recycling, and contributing to sustainable development. Therefore, tin slag recycling is necessary and of great significance.