The invention discloses a distribution network planning whole-process evaluation system, and the system comprises a system management module used for the management of an organization, a system, a cache and a process, and setting an extraction tool. The system also comprises an extraction management module used for extracting business data according to an extraction tool and obtaining a business data mapping relationship, a modeling and visual analysis module used for evaluating a modeling tool and carrying out a data visualization process; and a distribution network planning evaluation moduleused for constructing a distribution network problem library evaluation strategy model, a distribution network project library evaluation strategy model and a distribution network project construction effect evaluation strategy model according to the modeling tool. According to the technical scheme, the management and control requirements are met according to distribution network planning; basedon multi-professional data integration distribution network service data, a distribution network planning problem library and a distribution network planning project calculation evaluation strategy are calculated, and thereafter, distribution network planning problems, distribution network planning projects and planning project construction effects can be evaluated, the whole process of distribution network planning is effectively evaluated, and the quality of distribution network planning is improved.