Spearman's correlation analysis was carried out to knowrelation among the salinity and dissolved inorganic nutrients at the surface and bottom layer. The correlation factor of DIN was -0. 72, DIP was -0. 46 and dissolved inorganic silicate was -0. 63 at surf ace layer and DIN was -0. 70, DIP was -0. 44 and dissolved inorganic silicate was -0. 57 at bottom layer. The dissolved inorganic nutrients at the nearshore of Gunsan was af fected f rom the freshwater discharge of Geum river. Especially, a lot of DIN flowed into the nearshore of Gunsan from Guem river. The concentration of dissolved inorganic nutrients at Gunsan showed high at station 1, 2 and 3 and there was a little concentration diff erences according to the cruise time. The concentration of dissolved inorganic nutrients showed high value at the station 1, 2, 3 which exist nearshore of Gunsan city and it means these stations mainly affected by Geum river and Gunsan city. The annual average of dissolved inorganic nutrients showed gradually decreased from 2003 to 2010 and we need more research on this conditions.