Surface heat budget of the Deukryang Bay from July 1, 1992 to September 12, 1993 is analyzed by using the meteorological data (by Changhung Observatory and Mokpo Meteorological Station) and oceanographical data (by Research Center for Ocean Industrial Development, Pukyong National University). Each flux element at the sea surface which has annual variation is derived with application of an aerodynamical bulk method and empirical formulae. The solar radiation is the maximum in spring and summer, and the minimum in autumn and winter. The effective back radiation, the latent heat and the sensible heat are the maximum in autumn and winter, and minimum in summer. The heat storage rate is calculated by using the rate of water temperature variation according to the depth. The oceanic transport heat is estimated as a residual. The net heat flux, the heat storage rate are positive in spring and summer, while they are negative in autumn and winter. The oceanic transport heat is convergence in winter and divergence in the rest of seasons.