Abstract: As two major economies in the world today, China and Japan have significant space for cooperation in the economic field. With Japans positive change in the attitude of “the Belt and Road” Initiative, China and Japan have unveiled a new chapter of cooperation in thirdparty markets. Although there are still many uncertainties in the current situation, the cooperation between China and Japan in the thirdparty market will not only help improve SinoJapanese political relations, but also help achieve mutual benefit and winwin in the economic fields of both sides. China and Japan have the possibility of thirdparty market cooperation in infrastructure construction, financial support and economic and trade. Then by using the cooperative game model, we analyze the effect of SinoJapanese cooperation in the thirdparty market and propose four modes of cooperation between two countries under “the Belt and Road” framework.

Key words: the Belt and Road Initiative, thirdparty market, SinoJapanese cooperation game