Based on ERA5 reanalysis data, the spatial distribution characteristics of Stokes drift velocity in four seasons in adjacent seas of China from 1980 to 2023 were calculated and analyzed, and the variation characteristics of Stokes drift velocity under typical typhoon conditions were analyzed. The results show that the Stokes drift velocity in adjacent seas of China exhibits significant latitudinal differentiation and seasonal variation characteristics. Except in summer, the high-value areas of Stokes drift velocity are all located in the adjacent seas of the Taiwan Strait, China, where the average velocity can reach 0.1 m/s, and the direction is generally southward and southwestward. In summer, the high-value areas of Stokes drift velocity shift to the southwest, located in the southeast of the Indo-China Peninsula, with velocities ranging from 0.08 m/s to 0.09 m/s, and the direction is generally northward and northeastward. Affected by topography and monsoons, the Stokes drift in the Yellow Sea and Bohai Sea regions presents the characteristic of northward propagation along the coastline, which is closely related to the northward transport of floating objects on the sea surface. Under the influence of extreme weather such as typhoons, especially in the seas near the typhoon generation area, the Stokes drift velocity along the typhoon path increases by 1.5-2.3 times.