As a serious problem，sprlngbaG’k has restrlG’te(1 the ln(lustry app11G’atlon Of hlgh Strength Steel Sheet t0a large extent. For the sake of reducing springback influence，suitable process parameters are very crucial to reducespringback. Analyzing the forming process of back-beam with complex surface by numerical simulation，a methodthat is setting equivalent draw bead and BHF optimization was adopted to optimize forming results to determine location distribution of equivalent draw bead and size of draw bead resistance. The springback amount of back-beam ismeasured by the method of figuring out the distance between the node with the largest offset and the original node.The method of increasing locally drawbead resistance and decreasing BHF is adopted to control springback and trimming springback after back-beam forming，and match reasonably equivalent drawbead and BHF to make springbackamount decrease to a small range. The part has a smaller springback amount and a higher forming precision throughcomparing the simulation results with the experimental results，the springback control method can be used to guide the practical production.