The present invention discloses a BIM-based building energy saving automatic examination method. The method comprises carrying out examination on building body shape coefficients, on a ratio of the single facade window to the outer wall, on heat transfer coefficients, and on outer window sunshade coefficients in revit software, wherein heat transfer coefficient examination comprises examination on heat transfer coefficients of the outer wall, the roof covering, the outer window, the basement, and the top plate. According to the method disclosed by the present invention, the scheme for building energy saving examination can be optimized, design efficiency and quality can be improved, the workload of designers can be reduced, multiple time resources can be saved, the costs can be reduced, and more value can be created for design units.