The correct evaluation of monument status, including the size of damage area, the damage factors and trend, is the basis of determining the analytical techniques for studying the monuments. Nowadays, damage analysis of monuments is usually qualitative in China, and the damage is classified into weathering, water action, collapse and human activities by cause, or into relief, discoloration and granular disintegration by appearance. The damage has been analyzed for many years, but it is difficult to compare the results because of their descriptive evaluation. To evaluate quantitatively and compare these results, quantitative analysis and relevant evaluation software were developed by using VBA in AutoCAD. The application defines 25 kinds of monument damage and figures the corresponding patterns. Hatching pattern can be easily accomplished by clicking mouse. Different damage factor is given to each kind of damage, and the whole monument can be classified according to the Damage Index (DI) which means the damage intensity. Besides, the damage area and its factor can be calculated. The classification can be illustrated using AutoCAD. Conversion between AutoCAD and Excel data is built, so it is convenient to analyze the data. It is proved that it is necessary and possible to develop software for quantitative analysis of the damage of monument.