Abstract: An approach of theoretical calculation of Cibbs Free Energy of ionic solvation has been proposed. A new treatment of electrostatic interaction between ion and solvent molecules located in the first solvation layer has been shown. Contribution of solute-solvent interaction to energy calcuiation has been considered. Born equation was used in the calculation of electrostatic energy out of the first solva- tion layer. Scaled particle theory was used for non-electrostatic interactions. Re- pulsion energy was estimated by the formula given by F. H. Lee and Y. K. Tai. Calculations of various kinds of ions in H_2O, DMF and PC are in good agreement with experimental values.