To roll a hard-to-work tube stock such as Ni-base alloy without generating plastic deformation on a mandrel.

This rolling method is composed so that the tube stock H is drawn while imparting tensile force to the tube stock H from the front in the advancing direction of the tube stock H, the tube stock H is elongated between plural inclined rolls 21 which are arranged around the pass line X and the mandrel 11 which is inserted into the tube stock H and a rolled tube M is manufactured. In such a case, the tube stock H is elongated while advancing the mandrel 11 in the advancing direction of the tube stock H.