Abstract: According to four components of spatial field effect, the influencing factors of plot dynamics are selected, and the quantitative value of each factor of the influencing factors is mainly studied. Then, using the quantified value model of spatial field effect for reference, the quantified value model of spatial active force is established, and the quantified value of spatial active force is studied by selecting fourteen representative urban plots in Zhengzhou. Taking an actual transformed plot in Zhengzhou as an example, the factors among the influencing factors of activity intensity are compared to guide the plot to maximize the active force.