Zircon in uranium-rich granites frequently undergoes intense metamicization owing to elevated uranium content, resulting in unreliable U-Pb dating outcomes and complicating the accurate determination the U-Pb age of zircon from such granite. To tackle the challenges associated with precise dating of high-uranium granites, this study investigates the Ziyunshan pluton in central Jiangxi. Comprehensive petrographic and petrochemical analyses were performed, confirming its classification as a typical uranium-rich peraluminous granite. Using α-track etching technology, uranium-bearing minerals were identified and characterized through scanning electron microscopy and electron probe analysis. These analyses revealed primary magmatic minerals, including zircon, monazite, xenotime, and uraninite, alongside hydrothermal secondary minerals such as coffinite and thorite. Geochronological investigations of the principal uranium-bearing minerals indicated that zircon, affected by intense metamicization, produced scattered and anomalously young LA-ICP-MS U-Pb ages (142.8 ± 1.0 Ma), suggesting an open isotopic system. In contrast, monazite yielded a weighted average age of 150.5 ± 0.8 Ma, which is both consistent and reliable. Additionally, the electron probe U-Th-Pb chemical age of uraninite was determined as 151.4 ± 1.7 Ma, aligning with previously established rock formation ages. This study demonstrates that monazite, owing to its strong radiation resistance and robust isotopic system, can serve as an effective alternative to zircon for dating uranium-rich granites. Furthermore, electron probe chemical dating of uraninite proves to be a feasible and accurate method, offering valuable insights for geochronological studies of similar granite.