Abstract: As space science advances, the demand for detecting AC magnetic fields (ACMF) in space continues to be highlighted. Reducing the interference of the ACMF generated by the spacecraft on onboard magnetic sensors is crucial for obtaining high-precision space magnetic field data. The JUICE probe, launched in 2023, has achieved a world-leading level of precision in ACMF control. This paper initially introduces the magnetic sensor configuration and control indicators of JUICE, followed by an overview of the sources of ACMF. Key technologies, including JUICE’s ACMF index estimation, ACMF measurement, as well as the optimization of solar panel and reaction wheel design for ACMF control, were examined. The main differences between ACMF control and DC magnetic field control were also discussed. Finally, the magnetic test equipment configuration for JUICE single units and the entire spacecraft was summarized. These practices provide references and guidance for the research and implementation of ACMF control technology in China’s future space magnetic field exploration missions.