Abstract: Based on the Himawari-8 Level3 Aerosol Optical Depth(AOD) data, parameters of annual mean, monthly variation, seasonal variation and hourly variation were used to analyze the spatial and temporal distribution and variatron of AOD. The results indicate that annual average AOD in coastal SE China forms a zonal distribution along the coast. With increased distance to the shore, the AOD gradually decreases. The highest area of annual averaged AOD appears in Fujian and western Taiwan coastal areas, i.e. in the two banks of Taiwan Strait. The lowest AOD area occurs in a remote waters of the West Pacific. Because of high suspended materials in the water in the eastern coast of China, the seawater reflection is high in the coastal SE China. However, the values of underlying surface used by AOD product was low during the retrieval, which lead to a falsehood and high value of AOD. The AOD in the coastal SE China reaches the highest in March, and decreases to the lowest in June. The temporal AOD mean pattern varies substantially with seasons and it comes to the highest in the spring, moderate in winter and autumn, and to the lowest in summer. The reason for seasonal variation is that the advection fog and solar radiation have great contributions to the AOD value in the spring circulation while AOD value is affected by the Subtropical High as well as the solar radiation in summer. In autumn, neverthless, northerly winds and cold air play an important role in AOD values. The combined impacts of the Cold Ridge and the funnel effects on AOD occurs in winter. Due to the common effects of landsea breeze and photochemical reaction in the Taiwan Strait, AOD rises from 8 a.m. to 15 p.m.. At 15 p.m. the value reaches the peak of the day. In the meantime the rather high AOD extends from the two banks to the middle Taiwan Strait.