To ensure the accuracy of the dynamic angle measurement results for the turntable angle measurement system, a dynamic angle measurement method based on Kalman filtering is studied in this article. The principle of dynamic angle measurement method is described, and the parameter optimization model and dynamic prediction model based on Kalman filtering are explained in detail. The dynamic angle measurement circuit is designed according to the requirements of measurement accuracy, and the real-time prediction of the turntable angle is realized based on the field programmable gate array platform. The simulation experiment of constant acceleration motion is implemented with acceleration of 10°/ s 2 , and the validity of the method is verified by taking the theoretical value of turntable angle as a reference. A turntable experimental platform is established to evaluate the application effect of the dynamic angle measurement method with the ring laser gyro as the reference value. Experimental results show that the proposed dynamic angle measurement method can effectively reduce the system error introduced by the measurement delay of the turntable angle measurement system. The error is reduced from -82. 62″ to -0. 01″ at the speed of 30°/ s, the consistency of measurement results can be maintained at various speeds, and effectively improve the dynamic measurement accuracy of the turntable angle measurement system.