Demand and interest in renewable energy is increasing rapidly. Solar energy has become a new source of energy. Among the methods of using solar energy, a photovoltaic cell converts a solar light directly into electricity by using a photoelectric conversion element. It is a technology that uses solar heat by storing solar heat in the fluid by using a heat collector. In this study, The test equipment that can measure the performance of PV/T panel was developed. The DOE(Design of Experiments) was applied for the test plan. The DOE results were analyzed by ANOVA(analysis of variance) and regression equation was derived. We can predict heat output through the regression equation of PV/T panel. The difference between predicted and measured heat output was less than 9%.