Abstract Luofu pluton is located in the junction of eastern Nanling metallogenic belt and southern Wuyishan metallogenic belt ， one of the major uranium producer in southern China ， Magmatism in this area is controlled by the East River-Xianshui and Datang-Zhegu Long fault. The magmatism is of multi-stage ，
and the most intense activity occurred in Yanshan period which formed a NNE-NE trending complex pluton.The main rock is medium coarse grained porphyritic biotite granite of the third stage in early Yanshanian.The biotite granite is of higher uranium content ， low Th/U ratio. The granite complex is located in a
favorable tectonic setting similar to Daqiao uranium deposits. Geophysical and geochemical exploration in recent year indicated that there existed the compound anomaly of spectrum U ， Rn and partial extracted uranium with the granite complex ， therefore there is favorable prospecting potential in the northern Luofu
pluton of Guangdong province.