Through the research into the export and foreign exchange contribution of China's aquaculture to agriculture,we find out that aquaculture plays an important role in agriculture,especially in export.In the meantime,both the H-O theory and the Engel's law inform us that our country's comparative advantage in aquaculture is relatively strong.Therefore,it is necessary to promote the export of aquatic products to develop our agriculture and then accelerate our country's economic growth.However,we are confronted with two problems in fishery exports,of which one is trade barriers and the other is the vicious competition of the same line.Therefore,it is necessary to take some measures,such as setting new industrial standards,systems of packing materials and label certification to eliminate technological barriers on fishery exports.Furthermore,we should produce more high value-added products to promote fishery exports.