In recent years, fishery operators have been facing problems such as decreasing fishery incomes, price drops caused by imported marine products, mergers and labor shortage of fishermen's unions and the delay of the introduction of information technologies to fishing villages. Additionally, there are demands for higher added value of marine products and the simplification of procedures. It has also been pointed out that areas considered remote in terms of transportation, including isolated islands and Hokkaido, may be at a disadvantage with regard to the trading of marine products in the future, since both the merger and the abolition of marine product markets is expected. In this study, (1) database, (2) data mining (preference information selection system) and (3) encounter-support agent (interactive preference search system) were developed to improve the speed and efficiency of the distribution of these marine products, increase their added value and promote the development of fishing communities. From the viewpoint of the safety and security of marine products, a simple traceability system using QR codes (two-dimensional codes) was also introduced to establish a distribution system to give new added value to marine products. Marine products were then distributed for demonstration and the subsequent economic ripple effect was evaluated by inter-industry relations analysis