With China's goals to have carbon dioxide emissions peak before 2030 and achieve carbon neutrality before 2060, the green aviation industry of China is developing very fast like the field of electric vehicles. Under these circumstances, this lecture first summarizes the strategy and policy made by Chinese government to promote the development of green aviation. Since Chinese government attaches great importance to digital innovation, many efforts have also been made in digital innovation like 5G and AI for green transition of aviation industry. This presentation will formulate the strategy and practical cases in digital innovation for green aviation in China.