In order to analyze the influence of thinning coefficient distribution on workpiece quality in multimode thinning stretching process, finite element simulation software of Simufact was used to simulate multimode thinning and stretching cold forming process. Test material was C15c steel, and thinning coefficient distribution of multimode thinning and stretching adopts smallmediumlarge, largesmalllarge and average distribution respectively. The equivalent plastic strain and equivalent stress of multimode thinning and stretching forming for cylindrical part were used as evaluation indexes to analyze the influence of different thinning coefficient distribution modes on workpiece forming quality, and simulation results were tested and verified. The simulation analysis and experiment show that the deformation force of thinning coefficient smallmediumlarge is the smallest (1350 kN), and the tensile strength is the highest(674 MPa). The elongation rate is similar to those in the other two distribution methods, which is of guiding significance to determine the mold design and process parameters of multimode thinning stretching process.