Abstract: This paper applies the DOE method to analyze the control factors affecting the lag force of a pedal simulator and establishes a corresponding DOE experimental matrix. Through DOE analysis, the influence degree of each control factor on the simulator lag force is evaluated, the key factors with significant effects are identified, and effective control of the simulator lag force is achieved by adjusting their parameters. This method significantly shortens the testing and analysis cycle of the simulator lag force, while clarifying the key design parameters influencing the lag force, providing important guidance for the subsequent design and analysis of pedal simulator lag force.