Abstract: Addressing electromagnetic environment control in power transmission projects, this study proposes a dynamic control model integrating spatial adaptive cellular automata(SACA) based on GIS technology. The model builds spatial data models for power transmission projects using GIS platform and divides the study area into irregular spatial grid cells. Building on this, an adaptive evolution rule considering spatial heterogeneity is designed to characterize electromagnetic field diffusion and environmental effects. The model adaptively adjusts cellular evolution parameters according to regional geographic features and sensitive target distribution to achieve zoned electromagnetic environment control.