Micelles are one type of surfactant aggregation and the narrow concentration range is called the critical micelle concentration (CMC) above which micelles exist in the solutions. Micellization is affected by surfactant solution temperature, and the correlation between CMC and temperature has been represented by polynomial fitting of CMC and T by now. It is known that CMC is dependent for temperature, but not assured how it depends on. This article deduced new relationship CMC with temperature from thermodynamic equation and linear change of enthalpy and entropy with temperature on micelle formation in surfactant aqueous solution.