The present invention discloses a design method of the distribution network planning and construction scheme based on the non-dominated sorting genetic algorithm. The method comprises: generating a planning project and carrying out automatic optimization design of the project construction timing; with the new computer technology, sorting out the current situation and the target grid, comparing the current situation with the target grid to obtain the difference between the target grid and the current grid, and based on the difference obtained by comparing and analyzing the grid, automatically generating a planning project library from the current grid to the target grid according to a certain project division principle; using the distribution network construction timing scheme based on the non-dominated sorting genetic algorithm to carry out optimization, and finishing adaptive search of the optimal solution to the problem by imitating the selection, crossover and mutation mechanism in the process of biological evolution, so that parallelism of robustness and implicity are ensured, and the method is more unique and superior than other traditional optimization algorithms. The method disclosed by the present invention satisfies the technical requirements such as safety, reliability, and the like, and ensures the rationality of the intermediate grid and the economy of construction and operation.