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Aiming at the problems of the existing satellite optical communication tracking control system that the optical communication signal data segmentation error is large and the tracking control accuracy is reduced, a satellite optical communication accurate tracking control system design based on intermediate node prediction is proposed. Use DPS embedded technology to build a hardware platform based on intermediate node prediction data processing, use MCU as the command and dispatch unit of intermediate node prediction data; apply CDD optical sensor to optical communication spectral signal feature acquisition unit. Through the STM32F103RBT6 master control, the high-precision optical communication spectral characteristic signal processing of the CDD optical sensor; through the 73M2901CE-IGV/F tracking signal precision modulation IC to complete the control and adjustment of the high-precision tracking signal. Test the control accuracy of the design system in multiple scenarios. The data shows that the designed system can support the optical communication signal strength greater than 32% and less than 50%, maintaining the communication tracking control index of 0.92, maximizing close to the standard index 1. Under the condition of 600 test data, the designed system's detection The time-consuming is 1.2s, which shows that the designed tracking control has higher precision and shorter control time, which meets the application requirements of the actual tracking control system for optical communication.