The current structures of the Changjiang River Plume in the flood, dry and transitional seasons are briefly analyzed by using data from anchor stations obtained since 1950s. The main results are as follows: (1)In the flood season, there exists a jet-like flow area off the North Passage, where the maximum speed of the observed residual current could reach 103cm/s at the surface layer and the Changjiang Diluted Water( CDW)goes in such a way that it usually runs southeastward to eastward nearby the river mouth at first and then diverts to the northeast. (2) In the dry season the CDW is confined to a narrow band west of 122°33'E, extends to the south or southeast off the South Passage, and at the surface layer behaves like a quasi-geostrophic current instead of a jet-like current.(3) In the transitional seasons (spring and autumn) the main current speeds within the CDW are much less than that in the flood and dry seasons and its behaviour seems to be unstable. (4) The difference of the current structures for different seasons owes its origin to the seasonal differences of the monthly averaged discharge of the Changjiang River and its partitions in three branches-North Passage North Channel and South Channel. (5) The instability of the current structure in the nearshore section is caused by interaction between local wind field. coastal current. the Taiwan Warm Current and particularly, monthly averaged discharges in the above three branches over the complex topography.