Abstract: In response to the preparation requirements for non-oriented silicon steel used in new energy vehicle drive motors, this paper obtained normalized sheets with similar microstructures but different thicknesses by adjusting the normalization process. Subsequently, through cold rolling and annealing, non-oriented silicon steel sheets with a thickness of 0.25 mm were obtained. The effects of cold rolling reduction and annealing temperature on the microstructure, texture, magnetic properties, and mechanical properties of the non-oriented silicon steel sheets were investigated. The results showed that as the thickness of the hot-rolled non-oriented silicon steel sheets decreased (the cold rolling reduction decreased), the intensity of the unfavorable textures 223<110> and 111<110> in the cold-rolled sheets gradually decreased, ultimately improving the texture of the annealed sheets, with the texture factor gradually increasing by 0.14 to 0.63. The iron loss P_10/400 decreased by 0.2-1.3 W/kg, the magnetic induction intensity B₅₀ increased by 0.01-0.02 T, and the yield strength only decreased by 2-11 MPa. With an increase in annealing temperature, the P_10/400 of the annealed sheets with three different initial thicknesses decreased by 0.3-0.8 W/kg, and B₅₀first increased and then decreased (reaching a maximum value at an annealing temperature of 940 ℃), while the yield strength decreased by 3-13 MPa. Therefore, by thinning the initial hot-rolled steel sheets, the cold rolling reduction can be reduced, and combined with the optimization of the annealing process, the texture of the annealed sheets can be improved, enhancing the magnetic properties of the non-oriented silicon steel sheets.