重大工程建设项目投资巨大,其建设总成本控制有效与否,直接关系到项目能否顺利建设及项目的投资效益,对国家和地区的经济发展影响深远。但是,重大工程建设项目概算超估算,预算超概算,决算超预算的现象时有发生,项目建设总成本时常处于失控状态,原因何在?又该如何解决? Significant investment in major construction projects, the construction of the total cost of control is effective or not, is directly related to the smooth construction of the project and the project’s investment returns, the economic development of countries and regions far-reaching impact. However, the major project construction budget estimates over estimates, budget estimates over budget, over budget estimates occur from time to time, the project construction costs are often out of control state, the reason? And how to solve?