Planetary Pipe rolling process for AISI 304 stainless steel has been studied by using finite element method. Three-roll Mannesmann method is applied to this study. Commonly, rolling process has started from the cold working and finished to the hot one. The rolling process can provide excellent combinations of cost and process reduction than existing one. The process includes various and complex parameters. Each of the process parameters affects forming result. Therefore, all of the process parameters should be considered in FEA.