Abstract: The 14th typhoon ‘Nanmadol’ in 2022 caused mild ozone pollution in Fuzhou on September 19, with the hourly peak concentration of ozone reaching 194 μg/m³, the maximum 8-hour daily moving average concentration of ozone reaches 176 μg/m³. In this paper, air quality monitoring data, VOCs composition data of super stations, meteorological element data from September 15 to 21, 2022, combined with Lagrange particle Diffusion model LPDM, regional air quality model WRF-CMAQ and observation based OBM model, and other means, were used to analyze the pollution process, providing scientific basis for the prevention and control of ozone pollution in Fuzhou under the influence of typhoon system. The main conclusions are as follows: 1) The WRF-CMAQ model accurately reviewed this process. From September 18 to 20, the daily variation of ozone concentration in Fuzhou City showed obvious "double peak" or "wide peak" characteristics, which may be affected by the sea land transport brought by the northeast airflow around the typhoon. The low ratio of m/P-Xylene to ethylbenzene indicates that the photochemical process is long and the air mass aging degree is high. This pollution process is greatly affected by the aging air mass transmission. 2) On the 19th, the high concentration ozone air mass in the WRF-CMAQ hourly concentration space map was transported from offshore to inland by the continuous northeast wind. Combined with the change of ∆ Ox concentration, the ozone concentration in Fuzhou City was contributed by the transmission of about 5 to 17μg/m³, According to the analysis of pollution concentration flux, the average ozone transport capacity of the marine ozone pollution group to the Kowloon station reached 21600.72 μg/m³/s at 18:00 to 23:00 on the 19th. 3) From September 18 to 20, OBM model results showed that ozone generation in Fuzhou gradually changed from VOCs and NOx coordinated control area to VOCs control area. It is suggested that the reduction ratio of VOCs and NOx in Fuzhou should be controlled at 1:1 in the early stage of typhoon impact, and it is recommended to increase the volume of VOCs and adjust the reduction ratio to 2:1 in the later stage. Through scientific and dynamic adjustment of NOx and VOCs emission control, better control effect can be achieved.