Despite of a growing interest in "HanRyu" in other word Cultural goods export, there are not enough study on the economic impact and the transmission mechanism of "HanRyu". In this study we analyze about whether the cultural goods export as the proxy of cultural proximity can promote the total goods export. That is, we investigate the role of cultural goods export in reducing the informational transaction cost and bilateral preference diffusion. In empirical context, cultural proximity is measured by the linguistic similarity, migrants, religious similarity and so on. Many empirical studies have focused on cultural proximity between countries and found it to have a positive impact on international trade. The main explanations are the decrease in home bias induced by preference diffusion and the reduction of trade costs induced by the increase of reciprocal knowledge, interactions across members, and speed of information flows. Our study contributes to the international trade literature by introducing the time variant, acquired cultural proximity. We found that cultural goods export promotes total goods export from Korea to Japan. This result implies that, in company with trade creation effect of business and social network, cultural goods also can play a part in the mechanism over informal trade barriers.