建设项目投资控制贯穿于工程建设各个阶段 ,但起决定作用的是设计阶段。据有关资料分析 ,在初步设计阶段 ,影响项目投资的可能性为75 %～ 95 % ;在技术设计阶段 ,影响投资的可能性为 3 5 %～ 75 % ;在施工图设计阶段 ,影响投资的可能性为5 %～ 3 5 % ;而施工阶段对投资的影响一 Construction project investment control runs through all stages of construction, but the decisive role is the design stage. According to relevant data analysis, in the preliminary design stage, the probability of influencing the project investment is 75% -95%; in the technical design stage, the possibility of influencing the investment is 35% -75%; in the construction design phase, The possibility of 5% ~ 35%; while the construction phase of the impact of an investment