CTD data observed by the 24^th CHINARE (2007/2008) team are used to analyze the spatial distribution of temperature, salinity, and density at the northern margin of Amery Ice-shelf and to compare it with that of the 22^nd CHINARE (2005/2006) team. It is discovered from the comparison that the new variation at the northern margin of Amery Ice Shelf is the thermocline deepening, there exists the subsurface warm water in the oceanic upper layer in the east part of the northern margin of Amery Ice Shelf, and the warm water is limited in a small area at the east end of the Ice-shelf and its adjacent locations. Therefore it is obviously a local feature. In addition, the temperature, salinity, and density have their east-west gradients in the surface layer, which might be closely related to the floe concentration in the sea surface. These local features result from ocean-ice-atmosphere interaction.