In order to study the forming law of DP780 high-strength steel corrugated plate with a thickness of 1.2 mm, the optimal forming process parameters were explored. The mechanical properties of DP780 high-strength steel were obtained through real tensile tests, and the stamping forming process of DP780 high-strength steel corrugated plate was studied and simulated using Dynaform finite element software. The maximum thinning rate of the corrugated plate was used as an evaluation index, and the single factor analysis method was used to study the influence of the changes in the punching speed and the blank-holder force on the forming of the corrugated plate. The optimal process parameters of the blank-holder force of 500 KN and the punching speed of 1500 mm/s were obtained. The results show that the maximum thinning rate of the corrugated plate under the optimal process parameters is 8.952%, there is no cracking phenomenon, and the forming quality of the corrugated plate is good.