Abstract: Shanggong Gold Deposit is located in the north of Xiongershan Gold Field.Based on the study of the regional geological background,geological characteristics,and characteristics of ore-forming fluids of Shanggong Gold Deposit,it is considered that the evolution of ore-forming fluids of Shanggong Gold Deposit has 4 stages.The ore inclusions are dominated by gas-liquid two-phase inclusions,which commonly occur with the gas-liquid ratio of 5 %-10 % and possibly occur with 5 %-30 %;the most favorable metallogenic temperature is 200 ℃-300 ℃;the fluid is with a medium-high salinity,mainly between 5 % and 10 %,8.9 % on average;the ore-forming pressure is 80-93 MPa;the ore-forming fluid mainly belongs to the NaCl-CO,CO2-H2O system containing halogen and alkaline water solution.When the temperature decreases and the ore-forming stage proceeds to the post-mineralization stage,the ore-forming solution changes from weak acidity to weak alkalinity.The results can be used as a reference to study the characteristics of ore-forming fluids in similar gold deposits in the region.