This study addresses the demand for fishery products in Taiwan.The generalizedmodels are selected with dynamic specification to analyze the demand structure for fisheryproducts,using quarterly data for the period 1979-1998.The empirical results show thatthe generalized inverse demand system with prices dependent on quantities is suitable forthe demand system of fish products in Taiwan.Also,the generalized inverse model fitsthe data better than do the other four nested models.The adjusting coefficient of dynamicbehavior is highly significant level within the models,implying that the fish consumption wasto be affected by both inertia and habit persistence.The own price flexibilities of all thefishery products are less than one which indicates that both the quantity of consumerdemand and the revenue of the fishermen are proceeding in parallel.The fishermen'srevenue can be increased only by the increase of the quantity demanded.