The invention provides a tinning and tin-removing soldering iron and belongs to the technical field of electric tools. In the existing electronic industry, SMD components of PCBs are highly applied, so that electronic components are frequently welded and detached in the development and maintenance processes, soldering tin of original tin points needs to be removed if the components are detached, and a tin removal gun or a tin removal soldering iron needs to be used in the processes. In order to improve the working efficiency, the complexity of operation is reduced. The invention provides the soldering iron capable of achieving tinning and tin removal and provides a corresponding structural scheme.