Xining means “peace in the west”, is the capital of Qinghai province, and the largest city on the Tibetan Plateau. It has 2.2 millions inhabitants with altitude of 2,295 meters above sea level, and history of over 2,100 years. It has a cold semi-arid climate and acting as the major gateway to the Tibetan Plateau by railway ever since the accomplish of Qinghai – Tibet Railway in 2006. It also connected with Lanzhou of Gansu province, and Urumqi of Xinjiang Ugur prefecture by speed train, which makes Xining regaining its glory of being one “traffic hub” as it was on the Silk Road in ancient time