Financing is an important part of the "Belt and Road" construction. In the process of "Belt and Road Initiative", trade links and supply chain channels are important factors to strengthen economic and trade ties between relevant countries and China. The six economic corridors, namely, China-Mongolia-Russia, New Eurasian Continental Bridge, China-Central Asia-West Asia and China-Pakistan, not only strengthened the economic cooperation between China and relevant countries, but also further opened up the trade and investment channels between China and South Asia, Central Asia and Europe. China's "One Belt, One Road" cooperation with relevant countries has also broadened China's access to industrial raw materials from Central Asia and South Asia, promoted the integration of trade markets, and promoted the industrial upgrading and industrial manufacturing development of relevant countries through industrial transfer.