||Recently, annual aquaculture production in Taiwan about 250-300 thousand tons, and annual value about 30 billion NT dollars, which provide ~30% of total fisheries production. For fish culture, fishermen not only face the variation of production cost and market price, the structure of market channel also plays an important role for them. This study collected the secondary data and channel investigation of the major aquaculture products, which including Tilapia, milkfish, clam, oyster, Silver perch, Japanese seaperch and grouper. Compare to former investigation conducted by Directorate General of budget, Accounting and Statistics, our results show that the shipper still takes the advantage in the distribution channels, and the fish market and wholesalers of traditional marketing channels has been a marked decline in the proportion of its marketing share. In addition, due to consumer can benefit from abound information and logistics facilities, and thus various stages of channel could sold directly to consumers. On the other hand, the distribution channels of benefit-cost analysis, results show that the shipper benefit-cost ratio of oysters is the highest with 1.24, and the second is Silver perch with benefit-cost ratio 1.13 , tilapia, milkfish, clams and grouper are between 1.02 to 1.05, however, Japanese seaperch benefit-cost ratio is 0.98. Otherwise, the benefit-cost ratio of processing plants and wholesalers are about 1.05 to 1.15, while the retail channel of benefit-cost ratio was the highest among all marketing channels. Fisheries is one of the key industry for public, however, due to small scale, it is hard to adjust to era of free trade and the post ECFA periods. Besides, climate change also challenges the balance of supply and demand, and the fluctuation of market price. Owing to the rising concept of food safety, carbon reduction, it is important for government to assist the aquaculture industry to build up a stable, efficient, and sanitary supply chain management. To achieve this objective, it is necessary to enhance the communication among producer, wholesaler, and processors, and their capability to ease the market and price. Besides, in order to strength the marketing channel, it is also important to provide advanced education for risk management, product labeling, information transparency, organization enhancement, and eco-friendly environment for the aquaculture industry.