Abstract: Fujian Province is susceptible to ozone pollution in summer. In order to understand the characteristics of ozone change in Fujian Province, this study analyzed the changes in the hourly average ozone concentration from 2015 to 2017 in all cities of Fujian Province. For this purpose, the real-time data of the National Urban Air Quality Real-time Publishing Platform of China Environmental Monitoring Station were used. The results showed that Putian City had the highest average ozone concentration compared to other cities in Fujian Province. The daily ozone concentration in all cities of Fujian Province presented an increasing trend with obvious monthly fluctuation from 2015 to 2017. The ozone concentration at the weekend was lower than that during the working days in all regions of Fujian Province. The results of this study could support ozone control in Fujian Province in the future.