Abstract: Based on extreme temperature under the condition of dam temperature control simulation requirements,the influence of temperature on specific heat of concrete was tested by using mixed hot acquisition of components of the concrete under different temperature conditions. The specific heat of the use of specific heat capacity of the weighted accumulative principle got the specific heat of concrete with the temperature change,the specific heat of concrete considering the influences of temperature and mixture multivariate regression model was proposed and the accuracy of the model was verified. The results show that under extreme temperature conditions,concrete specific heat capacity is positively correlated with temperature and increases with the increase of temperature,and the rate of change gradually slows down. The proposed multiple regression model for concrete can accurately predict the specific heat capacity of concrete with different aggregate ratio.