Power distribution network planning project accurate investment method based on big data

The invention discloses a power distribution network planning project accurate investment method based on big data. The method comprises the following steps: step 1, constructing a regional power grid node big data acquisition system; 2, collecting and obtaining data of the power distribution network; 3, constructing a power distribution network planning calculation model; 4, substituting the operation model to implement a planning investment scheme; 5, building a multi-dimensional net rack model; step 6, historical data mining analysis; step 7, user power supply reliability feedback analysis; and 8, optimizing the power distribution network planning calculation model. According to the method, a later power grid planning worker analyzes and arranges historical power distribution network planning investment big data to form a reference basis for planning investment comparison, and optimization of a power distribution network planning investment scheme is facilitated; the power grid big data calculation and ana