Tin slag recycling is a highly necessary activity. Tin slag refers to the waste generated during wave soldering production, which contains a high tin content. Due to the limited nature of tin resources, tin slag recycling can effectively conserve resources and reduce environmental damage. Additionally, the tin in the slag can be reused, promoting the development of a circular economy by recycling and producing new tin materials. To achieve tin slag recycling, various methods such as physical separation, chemical recovery, and smelting can be employed. These methods efficiently extract and separate the tin, aiming for recycling and contributing to sustainable development. Therefore, tin slag recycling is not only necessary but also of significant importance.