At present the contradiction between the supply and demand of the commercial real estate becomes more and more acute. There are two sides of unbalance, one of them relates to the total amount about the supply and demand, the other relates to the structure of them. Either of them can block the circulation of the market and restrict the development of the real estate if any inconsistency happened. The most important reason, which results in the disharmony, in the author's opinion, lies in the inefficiency of the price mechanism in real estate market.