The Asian Infrastructure Investment Bank as proposed by China to infrastructure development as the main support content，multilateral financial institutions in Asian countries as the main target，which in future infrastructure throughout the region，regional economic development，social public utilities，geopolitics and regional security and other aspects will play a positive role. Northeast Asia as China to participate in international cooperation and opening up key areas，which is inseparable from the integrated development of regional cooperation mechanisms infrastructure，is also inseparable from financial support，need more Asian Infrastructure Investment Bank participation，in order to accelerate Northeast Asia Economic integration process，and comprehensively improve the level of opening up and opening up China’s northeast region.