The analytic results of Cu, Pb, 2n, As, Cd, and Hg in dry season ( February, March) and rainy season (August, September) from 1996 to 2010 at four coastal stations as Nhatrang, Vungtau, Dinhan, and Rachgia showed that the concentration of hea\-y metals as Cu, Pb. Cd, and Hg were always lower than minimum acceptable values (MAV- minimum value between acceptable value of water for resort and that for aquaculture). Value of 2n was higher than MAV at Vungtau, Dinhan, and Rachgia at times before 2000. Value of As was higher than MAV in all stations, at times qefore 1999.