Abstract: This article investigates the effect of forging process on the mechanical properties of GH901 alloy bars at room temperature, and compares the mechanical performance differences between the "multiple upsetting+pulling" (process one) and "direct pulling" (process two) processes. This study used a universal testing machine to test the mechanical properties of alloy bars forged by two different processes at different deformation amounts and forging temperatures. The results show that the alloy bars forged by process one have better mechanical properties than those forged by process two. After forging using process one, the tensile strength of GH901 alloy rod reached a maximum of 1238 MPa, the yield strength was 917 MPa, the elongation rate was 29%, and the hardness was 357 HB, all significantly higher than the corresponding data of process two. Further research shows that when the deformation is about 45%, the alloy rod exhibits ideal mechanical properties. The elongation of the alloy rod forged using process one is maintained at 23%, and the tensile strength is approximately 1240 MPa. When the final forging temperature is within the range of 1000-1020 ℃ and the top forging temperature is within the range of 1020-1050 ℃, the tensile strength of the alloy rod forged using process one can reach 1235 MPa, and the plasticity performance is optimal. In summary, multiple upsetting and elongation processes effectively refine grain size, promote uniform precipitation of γ′ phase, and improve microstructure uniformity through multi-directional deformation, achieving a good match between strength and ductility of GH901 alloy.