As the political, economic, cultural and transportation center of British, the birthplace of industrial revolution, London has experienced first development, transformation, redevelopment of the large city in the world.With industrial development and urban expansion, the gradual transfer of traditional manufacturing industries, the closure of old plants, and the growing shortage of water, land and other resources, London has accumulated a wealth of experience in promoting the urban transition, especially from the industrial economy,called"London fog",into a service economy,called "cool London".The experience and policy helping realizing the transition process is worth of learning. <<