在定义土地承载力时变模式、土地负载比和土地承载力类型内涵的基础上，用系统动力学方法，研究了重庆市土地承载力时变趋势与空间分异规律。认为重庆市各区县的土地承载力有三种时变趋势和五种承载力类型，并以土地承载力的时空趋势面表示了主要研究结果。 On the basis of defining the connotation of time-varying mode, land-load ratio and land-bearing capacity of land-carrying capacity, the time-varying trend and spatial variation of land-carrying capacity in Chongqing were studied by using system dynamics method. It is considered that there are three kinds of time-varying tendency and five types of bearing capacity of land carrying capacity in all districts and counties in Chongqing, and the main research results are represented by the time-space trend surface of land carrying capacity.