Abstract: The change of atmospheric electric field is affected by both lightning and solar activities. The change of atmospheric electric field represents the state of global atmospheric circuit. The characteristics of daily average variation represent the average value of the atmospheric electric 1.field near the ground in the quiet period, which is of great significance for the study of the disturbance of the atmospheric electric field near the ground caused by solar activities in the middle and low latitudes. Five long-term positioning field observation stations of atmospheric electric field, including Mohe station in Heilongjiang Province, Nong’an station in Changchun, Jiufeng station in Wuhan, Pixian station in Chengdu and Zhaoqing station in Guangzhou, have been set up in the Meridian Project. A large number of atmospheric electric field data have been measured. Through this data, we can strengthen the research on the variation characteristics of atmospheric electric field near the ground caused by solar events, through space-based and ground-based observation and theoretical research, the internal relationship between solar activity, near surface atmospheric electric field and local weather change is understood, and the mechanism of their interaction is analyzed.