With the rapid development of economy and the accelerating process of urbanization, the intensity of land development is increasing, which leads to the deterioration of ecological environment. Therefore, it is of great significance to analyze the carrying capacity of urban-rural construction land and the spatial pattern matching for solving the problems of unreasonable land use and ecological damage. Taking Nanchang City, Jiangxi Province as an example, this paper first building an index system from the aspects of ecological security, natural conditions, social economy and so on, using AHP and limit coefficient evaluation model to evaluate the suitability of urban-rural construction land development,then calculates the bearing capacity of urban-rural construction land and the abundance of urban-rural construction land.Finally it analyzes the spatial matching degree with the current urban-rural construction land, and discusses the correlation between the bearing critical value, the abundance and the spatial matching degree. The evaluation results show that the most suitable area, more suitable area, less suitable area and unsuitable area of urban-rural construction land development suitability in Nanchang City are 1466.19, 1346.01, 353.69 km² and 3770.70 km², respectively. The carrying capacity critical value and carrying capacity of urban-rural construction land in the study area are 41.25% and 24.05%, respectively, and the values of each county (district) is quite different,the carrying capacity critical value and carrying potential range of each county (district) are 19.43%-98.71% and 5.65%-49.83%, respectively.The abundance of urban-rural construction land is good,and the value of each county (district) is between 0.19-1.50. The range of spatial matching degree of each county (District) in Nanchang City is 67.41%-99.25%.The correlation analysis shows that the spatial matching degree is positively correlated with the critical value of urban-rural construction land and the abundance of urban-rural construction land. This study can provide the basis for the rational development and utilization of urban-rural construction land and the optimization of land space in Nanchang City.