Based on Vlasov open-profile thin-walled beam theory, bending angle expression consistent with high-strength stainless arc strip, energy equations of transverse and longitudinal deformation were deduced and process planning was obtained. The mathematical model of service behavior was established and the rolling force and spring back value after stainless arc strip being formed were simulated to judge the distribution reasonability of theoretical pass deformation. Depending on improved cold-roll forming equipment of cooperative enterprise and optimum simulation results, after several modification, high-strength stainless arc strip was rolled favorably, and testing result in site indicated that spring-back amount after forming is small and product quality could meet precision requirement of the users. Therefore the synthesis study on high-strength stainless arc strip of cold-bending principle is of great significance to optimum processing technology, bending roller quality and precision.