In this study, we analyze surface ozone (O3) pollution and its dominant meteorological drivers in China amid the record summertime extreme heat of 2022, using the Chinese national air quality network measurements and EAR5 reanalysis meteorological fields. Spatially, O3 concentration in China holds a high level in summer of 2022, with strong positive anomalies over northern China in June and over southern China in July-August. For long-term trend, O3 concentration in North China Plain (NCP) in June 2022 was the second highest among June months since 2015, resulting in the regionally-averaged ozone exceedance days of 21 days. In July-August 2022, O3 concentration was the highest for the same months since 2015 both for the Yangtze River Delta (YRD) and the Sichuan Basin (SCB). In terms of ozone precursor changes, relative to 2019-2021, there was only slight change in satellite NO2 columns in 2022 and the enhancement in satellite HCHO over southern China is consistent with temperature change, suggesting that the record summertime extreme heat of 2022 is the dominant driver of the O3 enhancement. Specifically, the spatial correlation coefficients between O3 and temperature anomalies in 2022 are 0.71, 0.64 and 0.49 for June, July, and August, respectively, and the O3 sensitivity to temperature in major clusters is also relatively high. This enhancement of O3 concentration also has a strong spatiotemporal consistency with the stagnant weather conditions featuring high temperature and low humidity under the control of the subtropical high. In particular, the O3-temperature relationship in 2022 is quite different from the previous years. As observed in 2019-2021, the strong positive correlation of O3-temperature is suppressed when reaching a high temperature threshold, but the positive correlation still persisted at extremely higher temperatures in 2022 in the NCP and YRD. This study highlights the importance role of extreme high temperature events on O3 pollution, which poses a pressing challenge to the synergistic control of complex air pollution in China.