The purpose of study is to estimate heating, cooling energy performance and economic efficiency in office building with applied the functional paint. this paint can reduced SHGC(Solar Heat Gain Coefficient)on the glazing surface by coating. In this study, estimated to compared with double glazing, low-e glazing and ESCu(Energy Saver Clear UV-Cut) paint glazing. ESCu paint coating outside, inside(one-side) and two-side of air layer. As a result of this study, 1)heating & cooling energy Performance Analysis, SHGC value and U-factor of double glazing is about 0.70 and 3.29($W/m^2K$). low-e glazing is about 0.66 and 3.29($W/m^2K$). one-side coating glazing is about 0.42, 0.39 and 3.27($W/m^2K$). two-side coating glazing is about 0.27 and 3.25($W/m^2K$). When compared to double glazing, annual heating & cooling energy of low-e, one side and two-side coating glazing is 3,012MWh(124$kWh/m^2$), 2,910MWh(120$kWh/m^2$) and 2,867MWh(118.4$kWh/m^2$). it is reduced to 2.0%, 5.2% and 6.7% respectively. 2)the estimation of economic efficiency, low-e glazing installed in office building can not recover the investment within a lifetime 40years. but ESCu paint, one-side and two-side coating in glazing, have a payback period of 8 years and 13 years respectively.