Continuous emergence of “prime site” primed a hot topic in 2007. Reviewing on classic cases of this year，the essay aims to explore main reasons of this phenomenon，of which the positive expectations of the market，the financial ecology of excess liquidity，the unperfect strategies system of transfer of right to use state-owned land and a faster expansion of mega real estate enterprises is discussed. After that，this essay reveals the industry innovation behind the rapid expansion of mega real estate enterprises：forming the capital’s strong status，changing the management pattern of enterprises，subverting the model of enterprise resources and speeding up adjustment of industrial structure.