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In order to solve the problem that the satellite signal received by rotating carrier is not easy to synchronize due to the change of received signal amplitude and carrier phase, the key technologies such as rotation angle measurement, antenna diversity and rotation phase demodulation are studied: The real-time measurement of rotation angle is realized by using the rotation angle tracking loop based on PLL. The antenna diversity technology and the rotating phase demodulation technology are used to compensate the phase change introduced by rotation and the antenna phase winding introduced by rotation, which improves the tracking accuracy of the rotating carrier satellite navigation. Through simulation analysis, the effectiveness of the proposed rotation angle measurement technology, antenna diversity technology and rotation phase demodulation technology is verified.