Economic cooperation between China，Japan and Korea attracts international attention.Their exploring of cooperation mechanism is an inevitable result of increasingly close economic ties among the three countries.Beyond the spontaneous market forces，external pressure on their cooperation cannot be ignored.The way out of the dilemma of weak external demand and export-oriented growth pattern is to deepen regional cooperation mechanism，and thus form a unified regional market.Despite of three countries’ efforts to strengthen cooperation within the region，there still remains enormous challenge to achieve collective action.China，Japan and Korea should pursue cooperation patterns based on Asian characteristics.