The advancement of the Belt and Road Initiative has enabled the countries along the route to deepen cooperation in ecological and environmental protection. With the increasing pressure for air environment quality improvement along the route, and China's experience and technologies in air pollution control, opportunities are provided for the globalization of China's air environmental protection industry. This study first summarizes the air environment status of countries along the Belt and Road, and then analyzed the cooperation conditions and demands of these countries. It also evaluated the level of air environmental engineering technology and equipment in China, and the level of air environmental services including air environmental monitoring and project operation, thus to explore the advantages for going global. By comprehensive analysis of cooperation approaches and advantages, strategic recommendations are proposed, including prioritizing cooperation in air environmental monitoring technology and equipment, encouraging international cooperation in air environmental services, promoting cooperation in the air pollution control technology and engineering, establishing a major technological project for air environmental engineering, and making full use of green finance.