Cross wedge rolling process is an advanced metal forming technology, which is widely used in forming various stepped shafts in automobile gearbox. When a large-sized asymmetric stepped shaft was formed, the imbalance of rolling force could cause workpiece to move in the horizontal direction during the rolling process, to fold with unstable size of the shaft, and even not to be formed. Meanwhile, the workpiece swung strongly in the tangential direction and bent. In order to solve instability of step size and bending, a typical asymmetric stepped shaft was chosen, when the section reduction rate was less that 75%, the two-time rolling process was adopted, and the reasonable forming angle and stretching angle were chosen too. At the same time, the end of rolling workpiece was controlled, and the forming process was analyzed by finite element simulation software Deform. Then, the test was carried out. The results show that the rolling force is effectively balanced by two-time rolling process, and the workpiece size stability can be ensured. Thus, compared with the workpiece with spiral end, the workpiece with 90°end can more effectively limit the tangential oscillation and prevent bending.