In 2006, China published the first National Evaluation Standard for Green Building (ESGB), which soon became the most widely spread evaluation system in the country. With the fast growth of urbanization, ESGB 2006 version no longer meets the current needs and requires an update. Based on the implementation outcomes of ESGB 2006 and expert opinions, the Ministry of Housing and Urban-rural Development published a new version of ESGB in 2014 (ESGB 2014). This research reviews the previous cases of buildings accredited with ESGB 2006 and collects the facts and data to explain the implementation results and identifies its weakness of the ESGB 2006. A comparative analysis of the ESGB 2014 with ESGB 2006 is based on an in-depth overview of both ESGB 2014 and ESGB 2006. The comparison results shows the improvement of the current ESGB 2014 in details, i.e., evaluated object, stage partition, weighted value, structure, indicators, etc. A case study is followed by choosing one building project to evaluate and calculate the green building accreditation according to both ESGB 2014 and ESGB 2006, and demonstrate the differences and development of ESGB 2014.