This paper presents the results of several chemical components in surface sea water at 36 positions of the West Truong Sa archipelago in June 2010. Some physical and chemical variables including temperature, pH, dissolved oxygen, . turbidity, salinity, oil content, ammonium, nitrate, nitrite, phosphate, silica, zinc, copper, lead, cadmium, mercury and arsenic were observed. The results can be utilized to preliminary evaluate the quality of surface sea water of the West Truong Sa archipelago.