Xingyuanchong copper deposit at Wanzai is located in the west section of Yifeng-Jingdezhen deep faults-Huangmao. On the basis of previous researches, and by carrying out temperature measurement of fluid inclusions systematically on gangue minerals, such as quartz and calcite, the authors discussed the sources of metallogenic fluids. The results show that 1) the homogenization temperatures of fluid inclusions vary in the range of 75˚C~440˚C, mainly in two sections: 110˚C~ 190˚C and 210˚C~290˚C,

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... howing the feature of low medium temperatures; 2) the salinity ranges from 1.74 wt% to 22.58 wt%, suggesting medium high salinity. The homogenization temperaturesalinity figure indicates the metallogeinic fluids are mainly submarine extrusive hydrothermal fluids and fluids related with diagenesis, and a small part of magmatic fluids.