Lu Feng's research fields mainly focus on China's open macro-economy and agricultural economy, and he has published some works on RMB real exchange rate, international balance of payments imbalance, service outsourcing, food security, grain and cotton trade and other issues. He put forward and systematically expounded the concept of "intra-product division of labor", and observed and explained the experience of China's economic open growth from this theoretical perspective. His courses in Peking University include: economic principles, management economics, macroeconomics, globalization and China's economic growth, and China's macroeconomics and policies in the 2 1 century.