10kV and below distribution network project post-investment review evaluation method based on quadrant analysis

The invention relates to a quadrant analysis-based post-investment review and evaluation method for distribution network projects of 10kV and below. The method comprises the following steps: constructing a post-evaluation index system consisting of 15 indexes in two dimensions of economic benefit and operation efficiency, obtaining related information system data through a digital means, distinguishing a forward index and a reverse index, carrying out index scoring, carrying out comprehensive scoring on the 15 indexes by using a min-max method considering increment, and carrying out index normalization to obtain a final evaluation index. The method comprises the following steps: solving the difference of different indexes in numerical unit, direction and dispersion, carrying out objective weighting on scores by using a CRITIC weight method, carrying out correction in combination with a Delphi method, and finally, distributing post-investment review results of each city distribution network in a power distribu