The invention belongs to the field of power grid development planning management in the power industry and particularly relates to an optimizing and ordering method for power distribution network planning projects. The method relates to a comprehensive assessment system for optimizing and ordering the power distribution network projects and providing important bases for reasonably determining investment focuses and investment scales. The method comprises the steps of establishing a current situation question detailed list of a power distribution network, enabling current situation questions to correspond to current situation indexes of the power distribution network from a current situation of the power distribution network, and classifying and describing the current situation questions; enabling the planning projects to correspond to the questions in the question detailed list for laying a foundation for comprehensive analysis of development goals of the power distribution network; according to a four-level power grid project classification principle, grading the planning projects; according to a planning project star-rating principle, performing assessment and scoring on the power grid project of each level to determine the star level; determining a weight occupied by the power grid project of each level; and forming a final planning library in combination with a power grid construction investment condition in a planning period. Therefore, the outstanding problems of power distribution network planning project construction disorder and the like for a long term are solved and the important bases are provided for reasonably determining the investment focuses and the investment scales.