Abstract: The spatial and temporal distribution of total ozone column in the North-west Pacific is analyzed by using the total ozone column data of the European Center for Medium-Term Weather Forecast, by analyzing the spatial and temporal field of total ozone column in the Northwest Pacific region, the following conclusions can be obtained. The low latitudes are the regions with the lowest total ozone column, and the zonal distribution is obvious, and the total ozone column increases with the increase of latitude to the Arctic.The maximum value of total ozone column in summer appears in the high latitude of the Northern Hemisphere about 80 °N, and the lowest in the tropics.In autumn, the maximum value of total ozone column appeared at about 55 °N, and the minimum appeared in the equatorial region.In winter and spring, the lowest values of total ozone column appeared in the tropics, and the highest values appeared in the high latitudes of about 50° ~ 60 ° N in the Northern Hemisphere.