Historic buildings carry the history of human civilisation, and their conservation and utilisation are widely valued by countries around the world. At present, the lack of qualitative and quantitative assessment and evaluation methods for the preservation status and attachment value of historic buildings poses a challenge to the smooth implementation of the conservation and utilisation of historic buildings. The development of a set of system standards for the assessment and evaluation of historic buildings is an urgent task for the conservation and utilisation of historic buildings. This paper proposes a set of comprehensive mapping assessment and evaluation system for historical buildings through the analysis and sorting out of the current situation of preserving historical buildings and their development lineage, architectural style, building type, society and art. Finally, based on the above mapping evaluation system, 20 historical buildings are graded according to the requirements of historical building classification, and according to the different levels. Corresponding conservation measures are proposed and different planning schemes are formulated to better utilise the historical, scientific, cultural and economic values of historical buildings.