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This article uses metallographic and EBSD techniques to study the effects of equal channel angular pressing on the microstructure and mechanical properties of two binary alloys, Mg-1Gd and Mg-2Zn. The results show that under the same pressing conditions, Mg-2Zn alloy fully recrystallized, resulting in grain growth and coarsening, and the strength and plasticity did not change with the number of pressing passes. Mg-1Gd alloy only partially recrystallized after pressing, with a microstructure consisting of fine dynamic recrystallized grains and deformed grains. With an increase in the number of pressing passes, the degree of recrystallization increased, leading to a doubling of the alloy"s tensile strength and plasticity. This was related to the greater inhibition of recrystallization and grain growth by the solute atom Gd compared to Zn. The recrystallized grains had a dispersed orientation, while the grains that did not recrystallize in Mg-1Gd alloy had a c-axis orientation that deviated 45° from ED to TD, which was consistent with the detection of macroscopic texture. A large number of small-angle grain boundaries formed within the grains, and rotations around the c-axis occurred on both sides of these boundaries, gradually evolving into large-angle boundaries.