This paper analyzes the financial development in western China in 2012 from the perspectives of banking，securities，insurance，financing and ecological structure. Comparing with eastern and central regions，the western region financial industry is continuous and stable；it plays an important role in supporting western economic development. This paper then summarizes the practice and achievements of financial support to economic development in western China，especially the methods and achievements in the real estate industry，tourism，construction of “Three Agriculture”，Open-door policy，small and medium-sized enterprises and business aspects of the people’s livelihood means and results，finally aims at the problems existing in the financial development in western China，such as banking institution lacking a high level of diversification，lack of ability，insufficient social security and investment direct financing，and the to-be-improved folk financial development. The rural financial services put forward a series of relevant policy recommendations.