The authors proposed Accumulative Roll-Bonding process as a severe plastic deformation, which enables production of ultrafine grained metal strips. Recently it was reported that change in strain path in severe plastic deformation has significant effect on ultra grain refinement. In this study, the authors discuss the ARB process with cross rolling. Six-layer stacked ARB of 1100 aluminium sheets was performed at room temperature with following three patterns of RD. Pattern 1; Straight conventional ARB, Pattern 2; ARB by Cross rolling, Pattern 3; Multi-directionally stacked ARB. The ARB processes with the three patterns were carried out up to four cycles. With increase in the number of ARB cycles, the tensile strength increases to 300 MPa. The material processed with Pattern 3 shows higher tensile strength as well as higher elongation than the others. Regardless of the patterns, elongated ultrafine grains begin to form after the second cycle. The grains formed with cross rolling (Pattern 2 and Pattern 3) are finer and more equiaxed than that with the straight rolling (Pattern 1). It is concluded that the ARB with cross rolling is more effective in ultra grain refinement and high strengthening than conventional ARB.