**Shanghai Pudong International Airport Terminal 2** The second phase terminal of Shanghai Pudong Airport has a total area of 500,000 m2, including 400,000 m2 air conditioned area dividing into main building, linking corridor and long corridor. Glass curtain walls accounts for 80% of the total wall surface. This project studies the thermal performance of envelope, energy efficiency method and the air-conditioning program. SPEC also proved the green lighting program and the water conservation method by simulating and assessing the indoor ventilation. This outstanding energy-conservation project enjoys high economic returns, wide social, environmental and the short-term additional first cost payback period.