Abstract: The objectives of this paper were to further enhance the study on land quantitative and informatization and combine GIS techniques with traditional farmland evaluation methods. In this paper, based on the traditional process of the farmland evaluation and the secondary development component ArcGIS Engine, a GIS system for evaluation of farmland productivity was developed, taking Guangrao County as an example. CLFEIS system could get a higher efficiency in implementation, due to AE’s powerful capability of spatial data processing. After the evaluation on functions of spatial data processing of this system, such as superposition, attribute extraction, report generation, the results matched the actual farmland fertility data of Guangrao County, and it indicated that this system could help managers better understand the status of farmland and provide technical and data support for further soil testing and fertilizer in Guangrao County.