Proof of the true motion of the North Celestial Pole

Based on an overview of the understanding of the movement of the North Celestial Pole by astronomical circles throughout history, both in China and abroad, the paper uses a comparative study method involving astronomy, geology, and geography to verify the true movement trajectory of the North Celestial Pole and explore its guiding significance in the theory of Earth evolution and its practical application value in modern global satellite positioning and navigation. In addition, the paper redefines or explains related concepts such as the ecliptic pole, precession, and nutation.