Abstract: During the forming process of a basin, the messages of ore - forming fluid, such as tempreture and pressure have been preserved in mineral fluid inclusion, which becomes widly used in the thermal history of the basin. This paper introduces the applied status of fluid inclusion in palaeofethermal and the palaeothermal gradient, analyzes the advantages and disadvantages, and points out that the method of comparison, verification and complementation of several palaeotempreture scales with one another is the most effective way to study the thermal history of the basin