AlMn and AlMnErZr alloys with thickness of 1 mm were prepared by accumulative overlapping rolling process. Then, the influences of accumulative overlapping rolling passes on microstructure, tensile properties, microhardness and microstructure of AlMn and AlMnErZr alloys were studied, and the mechanism of accumulative overlapping rolling and Er and Zr trace elements was analyzed. The results show that the interfacial bonding number and quality of AlMn and AlMnErZr alloy sheets increase with the increasing of accumulative overlapping rolling passes, and the interfacial bonding quality of AlMnErZr alloy sheet is better under the same accumulative overlapping rolling passes. The strength of AlMn and AlMnErZr alloy sheets after accumulative overlapping rolling is higher than that of before, however, the elongation after break decreases. With the increasing of rolling passes, the strength and hardness increase, and the plasticity changes slightly. Under the same rolling passes, the strength and hardness of AlMnErZr alloy are higher than that of AlMn alloy. Furthermore, AlMn and AlMnErZr alloys form subgrains and dislocation cells in the deformation region after rolling, and the dislocation cells gradually change into fine grains with the increasing of accumulative overlapping rolling passes. Therefore, the dislocation and subgrain density are higher in AlMnErZr alloy under the same accumulative overlapping rolling passes, which is related to the formation of fine pinned dislocations and grain boundary Al3Er phase in AlMnErZr alloy.