The invention relates to an auxiliary intelligent reviewing system for power transmission and transformation project design. The auxiliary intelligent reviewing system comprises the following realization steps of: project key feature index system library building; design information collection and checking; key feature index intelligent comparison and evaluation; and statistical analysis. The auxiliary intelligent reviewing system has the advantages that the centralized management on the design reviewing of projects at 110kV or below 110kV, and the reviewing efficiency is improved; a complete data management platform can be built for filing and reviewing service information and data in a unified way; the project design quality informatization evaluation can be performed, and a design credit performance tracking system can be completed; and a project techno-economic indicator system can be built, unified reviewing measurement standards can be provided, and the intelligent reviewing of the project design can be assisted.