The building of Qinghai-Tibet Railway makes the flowing population of Tibet increase rapidly and makes tourism population doubled and makes population income and population quality increase a lot and has active influence on population distribution, employment and urbanization. The governments should grasp the opportunity, revise many population development evaluation indexes, increase specific investment in Tibetan population development, establish supporting funds system for Tibetan population development, initiate the implementation plan for inland governments to support Tibetan population development and promote Tibetan population development.