Abstract: Based on the daily data sets of three environmental monitoring stations in Beibei, Chongqing from 2013 to 2017, the relationship between meteorological conditions and ozone concentration was analyzed by mathematical statistics combined with the ground flash observation data and relevant meteorological element data, and the ozone transmission path and potential source area were analyzed based on the hysplit model method. The results show that: (1) The peak value of ozone concentration in Beibei mostly appeared in July, and the low value mostly appeared in December. The ozone concentration distribution from high to low was Jinyun Mountain, Caijia and Tiansheng. (2) Compared with the air pollution concentrations on lightning days and non-lightning days, the average concentrations of NO₂ and CO on lightning days were lower than those on non-lightning days, while ozone was on the contrary. The over standard rate of ozone concentration on lightning day in Jinyun Mountain was significantly lower than that in the other two places. (3) No₂ concentration was negatively correlated with lightning frequency, and the fluctuation of NO₂ concentration in Tiansheng station and Caijia station was greater than that in Jinyun Mountain, and ozone concentration was positively correlated with lightning frequency. (4) The transmission path of ozone air mass in summer lightning days mainly came from the south. (5) The ozone concentration was higher than that on non- lightning days when ground lightning activities occurred, which was mainly due to the high frequency of ground lightning and frequent electrolytic reaction in summer. And because of the long illumination time and sufficient photochemical reaction in summer of Chongqing, the superposition effect of the two reactions was greater than that of precipitation removal.