Abstract: To address the issue of a limited and discontinuous applicable impact intensity range for the optimal constant acceleration (OCA) control method in magnetorheological (MR) seat systems, a minimum peak transmitted load (MPTL) control method is proposed. Based on the dynamic equations of the MR seat system, the state of the system under MPTL control is theoretically derived, and the applicable impact intensity range and the required controllable damping force range for the MPTL method are analyzed. The shock mitigation performance of the MPTL method under various impact conditions is evaluated through simulations, and the simulation results are validated experimentally. The results show that the MPTL method not only minimizes the peak transmitted load but also exhibits strong adaptability to different impact intensities and load masses.