[Objective] The effects of land use conditions on farmland quality, and the balance of quantity and quality of farmland occupied and replenished in increasing urban construction land and reducing rural residential areas project were scientifically evaluated, in order to provide technical support for the scientific promotion of the work.[Methods] Taking Dujianyan City of Sichuan Province as a study area, referring to the existing achievements of cultivated land quality evaluation, the project was simulated. And the balance relationship model and achievability prediction model for the quantity and quality of farmland were contructed and used to evaluate the balance of farmland occupation and compensation.[Results] The balance discriminant value of the quantity and quality of the occupied and replenished farmland in the study area was -11.82%, which indicated that the simulation project had not achieved the balance of the quantity and quality of the farmland. The balance achievability prediction value of the quantity and quality of the occupied and replenished farmland was 1.42, which indicated that the quantity and quality of farmland supplemented by the simulation project had the potential to reach the comprehensive level of the quantity and quality of the occupied farmland.[Conclusion] The models constructed in this paper can realize the rapid analysis and discrimination of the comprehensive balance of the quantity and quality of the farmland and the improvement potential in project of increasing urban construction land and reducing rural residential areas.