In this paper, the high frequency induction heating apparatus developed by the authors to analyze thermal stresses by means of photoelastic experiment is described, and the accuracy of the apparatus is examined. The photoelastic experiment for the hollow disk with a concentric circular hole in steady-state temperature distribution under heating conditions in a vacuum of 50°and 0° on the inner and outer edges, respectively, is performed to confirm the reliability of the apparatus. For the purpose of the realization of the heating conditions, the cooling system that circulates the cooling medium is incorporated into the high frequency induction heating apparatus. The experimental and theoretical values are compared.