[Objective] To provide a theoretical reference for optimizing the comprehensive land consolidation model for the construction of beautiful countryside, the coupling relationship between the rural land consolidation project and the construction of beautiful countryside was studied.[Methods] Eleven project areas in Nanjing City were taken as an example to firstly establish the evaluation index system of land consolidation and the construction of beautiful countryside. Secondly, the entropy weight method was used to determine the weight of index, and the relative coefficient evaluation method was used to calculate the respective scores of the basic data. Then the 11 kinds of curves in SPSS were used to estimate the regression model so as to explore the coupling relationship between land consolidation project and the construction of beautiful countryside. Finally, the relationship between land consolidation project and construction of beautiful countryside was analyzed by referring to the correlation coefficient R² and the trend of the correlation curve.[Results] The relationship between the land consolidation project and the environment of countryside in Nanjing City is relatively insignificant and the correlation degree of democratic management needs to be improved.[Conclusion] For the rural land consolidation work in the future, the protection of environment should be valued, and the public participation in the project should be improved to get a better coupling relationship between land consolidation project and the construction of beautiful countryside, achieving a mutual benefit between two systems.