Tin slag recycling is a highly necessary activity. Tin slag refers to waste produced during wave soldering processes, 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 by recycling and producing new tin materials. Various methods, such as physical separation, chemical recovery, and smelting, can be employed to achieve tin slag recycling. These methods effectively extract and separate the tin, aiming for recycling and contributing to sustainable development. Therefore, tin slag recycling is not only necessary but also of great significance.