The invention relates to an investment correction and optimization method for the engineering project of an intelligent power distribution network. The method is characterized by comprising the steps of firstly, dividing the life cycle of the engineering project of the intelligent power distribution network into three stages, namely previous preparation, construction oversight and operation maintenance, on the basis that investment related data during the whole life cycle of the engineering project of the intelligent power distribution network is obtained; secondly, refining the investment monitoring points of various stages through the analytic hierarchy process; thirdly, finding out deviation analysis reasons for the investment deviation of each monitoring point through the multi-factor analytical process so as to correct and optimize the investment; finally, feeding back the amount of deviation, deviation reasons, correction methods, optimization methods and results back to a relevant department. According to the technical scheme of the invention, the control, the deviation analysis, the correction and the optimization of investment funds can be effectively realized, so that the input and the recovery of investment funds during the whole life cycle of the engineering project of the intelligent power distribution network are controllable. Therefore, the invention provides a method for controlling similar investments in the future, so that investments are more standard and more reasonable.