The article examines China's manufacturing industry's environmental impact and investment strategy from 2006 to 2014. By using a non-radial DEA model, the researchers found that most manufacturing industries in China have improved their energy-environmental performance over time. Light industries show higher efficiency and investment potential compared to heavy industries. The study suggests that China should focus on increasing investment and R&D in light industries to promote green growth, while transferring excess capacity in heavy industries to other countries through outbound investment.