Southeast Asia，South and Central Asia are not only a priority direction of China’s neighboring diplomatic strategy，but also an important direction for China to advance the Belt and Road Initiative. At the same time，Japan also has long-term political and economic layout on countries along the Belt and Road，it particularly emphasize on increasing investment and improving influence in these countries. Currently，Japanese direct investment in these areas is manufacturing-based，and Southeast Asia as the main direction. At the same time，the growth potential is tremendous in South Asia. Due to the high demand in Asian-Pacific region for infrastructure investment，Japanese government aimed at the business opportunities，tried seizing the infrastructure market of these countries along the Belt and Road，it competes with China and its the Belt and Road proposal.