In the present research, which was carried out during the period of June 1996 to May 1997 in order to determine some population parameters of the scorpion fish (Scorpaena porcus Linne., 1758) in the Sinop region, a total of 633 individuals were investigated according to age, length, weight and sex composition, growth rate. the relationship of length-weight, Von Bertaianffy Growth Formula and the condition factor.