Abstract：The opening of the Arctic routes would have grievous impact on the trade business of the areas the Arctic routes affected. The characters of the node in the economic circle trade network of Arctic routes are analyzed comparatively by the betweenness centrality from structural holes theory in this paper. The finding indicates that： 1) with the rapid economic development， China has become one of the most essential nodes； 2) there exists particularly close trade connection among countries in the Arctic route economic circle including China， South Korea， Japan， the United States and Canada，which keeps playing an important role in the trade network； 3) the trade of the Arctic route economic circle are mainly formed by China and countries such as Japan， Korea， America， Russia， and thus the above countries become the key participants in the economic circle of Arctic route. In addition， the latter countries are also major trading partners for China； 4) the trade links for economic circle of Arctic route become more close due to shortening of the transportation distance among East Asia， Europe and America with the opening of the Arctic route. Whereby， China， the United States， Japan and South Korea will have greater advantage because of the rich structural holes and active trade links.
