Abstract: This study covers the homogenization and freezing studies on fluid inclusions of the lead-zinc deposits of Akdağmadeni.The freezing studies reveal that salinity of the hydrothermal solutions was high during the early stages of skarnisation (20 % NaCl equivalent during the magnetite-garnet-pyroxene and epidote-amphibole stages) and graduallydecreased during the following stages (10 % NaCl equivalent during the epidote-chlorite-sulphide stage and 3-4 %NaCl equivalent during the kaolinite-muscovite stage). In addition, the freezing studies show a pressure of formationranging from 300 to 500 bars.The homogenization studies indicate formation temperatures for the magnetite-garnet-pyroxene, epidote-amphibole,epidote-chlorite-sulphide and kaolinite-muscovite stages as >500°C, 460-490°C, 390-430°C and <320°C respectively.All the findings of this study are in good agreement with the results from other geobarometry and geothermometrymethods applied to these deposits.