Taking the supplement of the quantity and quality of cultivated land in rural settlements as the departure point, this paper discusses the spatial and temporal integration reconstruction method of rural settlements. The disorderly expansion of residential areas in Pinggu District, Beijing, China has led to the erosion of high-quality cultivated land in the region and the advantages of mountain resources have not been fully utilized in this area. Therefore, Pinggu District was selected as the research area. Using the spatial analysis function in GIS, this paper uses the comprehensive correction method of the per capita construction land standard and the neighborhood substitution method to analyze the quantitative potential of rural settlements to supplement cultivated land and the qualitative grade of cultivated land after arrangement. A combination of exclusion matrices are employed to identify the spatial and temporal arrangements of rural settlements. The research shows that the effective cultivated land area of rural settlements in Pinggu District is 514.24 ha, and the coefficient of increasing cultivated land is 9.25%. Rural residential areas in the district are divided into priority sorting area, key sorting area, moderate sorting area, and restricted sorting area; they account for 18.13%, 21.10%, 20.85%, and 39.93% of the total area, respectively. According to the regional characteristics and dominant factor of the different consolidation areas, corresponding consolidation goals, models, and engineering measures are proposed to enrich the theory and approach to village planning and to provide a reference for practitioners engaged in regional rural land consolidation. The innovation of this study is putting forward the consolidation objectives, models and engineering measures based on the regional characteristics and leading factors of different land consolidation areas. This study has reference significance for the formulation and implementation of regional rural settlements consolidation planning and the policy of increasing and decreasing urban and rural construction land.