Till 2016, the Ministry of Housing and Urban-Rural Development had already accomplished the goal of building energy efficiency proposed in the 1980s, to upgrade the building energy codes in three steps of raising energy efficiency by“30-50-65”with the state in the 1980s as the baseline. Recently, the goal of building nearly zero energy becomes the main solution of global warming and climate change. This paper reviews the latest international trend of nearly zero energy building and analyzes the special condition in China. The guideline and standards/codes and the best practice of nearly zero energy building are analyzed, together with the bottleneck of the key technologies. At last, the envisage of New Three Steps of building energy efficiency from 2016 to 2030 are proposed, which are“Low Energy Building, Ultra-low Energy Building and Nearly Zero Energy Building”.
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