The 2022 Beijing Winter Olympic Games will open in more than 10 days, "green" has become a prominent feature of this winter Olympic Games. Transportation, venues and energy are full of "green" elements. The secret behind the "green" Winter Olympics is the rapid development of green industry and green technology. Hydrogen fuel buses and pure electric vehicles have become the main forces to undertake the transportation task of the Winter Olympic Games. The use proportion of new energy vehicles is the highest in previous winter Olympics. As the main enterprise of transportation guarantee for the Winter Olympic Games, BAIC Motor Corporation has 212 hydrogen fuel buses and 330 electric vehicles to serve the Winter Olympic Games. According to BAIC group, the vehicles served as service guarantee of the group have passed the tests of low-temperature cold start, low-temperature driving range and low-temperature temperature temperature rise performance, and 100% have reached and exceeded all testing standards. Not only are vehicles "green", but also the enterprises producing vehicles are "green". BAIC group has established a full life cycle green management system and 13 national green factories, realizing low-carbon emission reduction in the whole production process. In addition to new energy vehicles, the new Olympic version of Fuxing EMU has also been launched at Qinghe station of Beijing Zhangjiakou high-speed railway. The train adopts lightweight technology, environmental friendly degradable materials, graphene air purification device, gray water reuse system, etc. to create a green and low-carbon space. In the front design of the train, the bionic front scheme is adopted to reduce the running resistance by 7.9% and the comprehensive energy consumption by more than 10%. The Beijing Winter Olympics has become the first Olympic Games in history to use 100% green and clean electric energy. The 500kV Zhangbei flexible DC project is the world's first four terminal flexible DC power grid to deliver large-scale wind power, photovoltaic, pumped storage and other energy, and to deliver Zhangjiakou's solar, wind and other clean energy to Beijing. Ding Sheng, deputy director of Beijing Municipal Commission of housing and urban rural development, introduced that all new venues for the Beijing Winter Olympic Games and the winter Paralympic Games have obtained the three-star green building design logo. Taking the Winter Olympic Games as an opportunity, transportation, venues and energy have woven a large green network. Green industry, green technology and green products have become the key nodes of this network. For example, BAIC Motor Corporation's "key technology and industrialization of three electric platforms for electric vehicles" and "key technology and application of hydrogen fuel cell buses" won the first prize of China automotive industry science and technology progress award. The effectiveness of green winter Olympics has been shown. According to the data, in 2021, there were 8 days of heavy pollution days in Beijing, 50 days less than that in 2013, with a decrease of 86.2%. In 2021, the number of first-class excellent days in Beijing was 114, an increase of 73 days compared with 2013. PM2 in Beijing 5. The concentration in 2021 decreased by 63.1% compared with that in 2013. Beijing said that in the next step, it will vigorously implement the green Beijing strategy, adhere to the main line of pollution reduction and carbon reduction and synergy, and focus on PM2 5. Focus on the coordinated control of ozone and local and regional pollution control, and focus on motor vehicles, fugitive dust and volatile organic compounds. (outlook new era)