Since 1990s，East Asian“flying geese model”has been playing a declining role in the region，instead of the East-Asian regional production networks has been emerging.The formation and development of East-Asian regional production networks shifted traditional division of labor among industries into intra-product specialization based on industrial chain，as a result，the“nationality”of the products is becoming blurred more and more.With the background of the regional production network，the imbalance of international trade becomes a multilateral issue like network.instead of a simple bilateral issue.In the post-crisis era，the pressure of global economic rebalance is increasing，which is a serious challenge to East Asia relying on the market outside.East Asian economies need to strengthen cooperation and take the initiative to adjust the East Asia regional production networks as the optimal path of economy rebalance in the region.