The invention discloses a power transmission and transformation project environmentally sensitive area monitoring control system and method based on the big data technology. The system is configured to manage all the sensitive areas within the power transmission and transformation project, the power transmission and transformation project data, and the coverage layer data; the environment monitoring data and the environmental protection dispute data are recorded and updated, data synchronizations and interactions are conducted through an interface and a grid environmental protection management subsystem, the grid environment is updated and data are protected, through the connection of the interface and the country network GIS platform, three dimensional Cartesian coordinate system conversions are performed on the data of the country network GIS platform, the power transmission and transformation project layers and geographical location information are invoked in real time; the obtained power transmission and transformation project data, the coverage layer data, the environmental monitoring data, the environmental protection dispute data, and the geographical information data are integrated to make them to appear on the same coverage layer. According to the environmentally sensitive area monitoring control system, the many information in the current power transmission and transformation project can be displayed in unification, different information can be integrated in the map to achieve data integration real.