The aim of the article is to analyze the friction welding process of steel pistons, due to the small amount of scientific literature on this subject. First, it is necessary to present the design features of steel pistons and their advantages and disadvantages. Then the article analyses it presenst the types of friction welding processes used in the production of pistons of internal combustion engines with the analysis of their differences. It present two basic methods of welding in the production of steel pistons, i.e. friction butt welding and low pressure friction welding. Finally, a proper analysis of the friction welding processes of steel pistons of internal combustion engines is presented. At the end, the conclusions of the analysis are presented and proposals for improving the process are made.