A building energy simulation and analysis platform is developed in present study. It integrates several high popularity and high reputation software to perform the modeling and analysis of the building energy use. The features of platform include simplified and customized graphical user interface, localized reference building models and building component library, standard operating process of building energy simulation, and cloud services of simulation and analysis. With these research benefits, the platform can provide users with a convenient and efficient environment of building energy simulation. Moreover, it can improve the design and integration capabilities of building energy performance and enhance the awareness of building energy use, as well as the industrial competitiveness.