The safety and environmental problems from the conventional refrigerants have been constantly handled and restricted by several protocols such as Montreal protocol and Kyoto protocol. In these protocols, environmental indexes such as ODP(Ozone Depletion Potential) and GWP(Global Warming Potential) are applied to refrigerants to enforce environmental regulations on the refrigerants. As a result, the necessity for environmentally friendly refrigerants has emerged. However, there is lack of study on condensation heat transfer and pressure drop characteristics of low GWP refrigerant such as R-1233zd(E). Meanwhile, plate heat exchanger which has a higher thermal efficiency than other heat exchangers, has been widely used in related industries. Therefore, in this study, condensation heat transfer coefficient and pressure drop of R-1233zd(E) in BPHE (Brazed Plate Heat Exchanger) are experimentally investigated and compared with the conventional refrigerants.