Abstract: This paper proposes a new position control algorithm combining the ideas of adaptive and predictive control. Simulation results show that the algorithm achieves satisfactory results in terms of tracking accuracy and control robustness when applied to a position servo system. Keywords : Adaptive predictive control, position servo system 1 Introduction Achieving high-speed and high-precision tracking of a given position trajectory is one of the key technologies of a position servo system. Traditional PID algorithms are insufficient to meet these high-speed and high-precision requirements. When model parameters change or high tracking performance is required, a new control algorithm must be sought to ensure high speed and high precision. The tracking error of the system is affected not only by system inertia but also by the uncertainties of the control system, mainly manifested in two aspects: First, model error. Any method used to establish the mathematical model of the control system will result in model approximation error. Furthermore, the dynamic parameters of a dynamic system will change within a certain range due to changes in external conditions. Second, disturbance effects. Position servo systems are often affected by disturbance signals during control, which can severely impact the system's tracking performance. Therefore, the control algorithm must compensate for not only the errors caused by the system model but also the uncertainties of the system. This paper proposes an algorithm combining adaptive control and predictive control based on an error model to address the aforementioned problems. In this algorithm, the predictive controller and the adaptive tracking of the system model are designed separately. Adaptive control is used to compensate for changes in model parameters. Through compensation, the control system model is brought closer to a given mathematical model, and then the predictive control algorithm is used to compensate for the given mathematical model. [b][align=center]For more details, please click: Research on Position Control Algorithm Based on Adaptive Predictive Control Theory[/align][/b]