To better understand the formation of Baolun gold deposit and provide information for further exploration, fluid inclusions of quartz in gold-bearing quartz veins were investigated using Raman method. The results showed that there were mainly two types of inclusion, i.e., CO2-H2O and H2O, respectively. The inclusions occurred in isolation or group with varied volume, and were the primary inclusion, exhibiting the characteristics of immiscible fluid inclusion.