the Asian infrastructure investment bank (AIIB) is an intergovernmental multilateral development institution in the Asian region. Focus on supporting infrastructure construction. The purpose of its establishment is to promote the process of interconnection and economic integration in the Asian region, and to strengthen cooperation between China and other Asian countries and regions. It is the first multilateral financial institution initiated by China, with its headquarters in Beijing and legal capital of 1 billion US dollars. As of May 13, 217, the AIIB had 77 full members.

at the global level, the main background of the establishment of the aiib is the sudden emergence of emerging powers. At the regional level, the main background of the establishment of the AIIB is the backward infrastructure in Asia. At the national level, the main background for the establishment of the AIIB is that China has entered a "new normal".

The Asian Infrastructure Investment Bank (AIIB) is another measure that China tries to dominate the international financial system after proposing the establishment of the BRICS Development Bank (NDB) and the SCO Development Bank. This also reflects China's attempt to exert the power of capital in international finance in its diplomatic strategy. What is more worth looking forward to is that the Asian Infrastructure Investment Bank will probably become the institutional guarantee for RMB internationalization, which will facilitate RMB "going out to sea".

the Asian development bank (ADB) is a regional intergovernmental financial development institution dedicated to promoting the economic and social development of developing members in Asia and the Pacific. Since 1999, ADB has particularly emphasized poverty alleviation as its primary strategic goal. It is not affiliated to the United Nations, but it is established under the auspices of the United Nations Economic and Social Commission for Asia and the Pacific (UNESCAP) and has close ties with the United Nations and its regional and specialized agencies.

The purpose of establishing ADB is to help developing members in the Asia-Pacific region eliminate poverty and promote economic and social development in the Asia-Pacific region through development assistance. ADB's assistance to developing members mainly takes four forms: loans, equity investment, technical assistance and joint financing, so as to achieve the ultimate goal of "Asia-Pacific region without poverty". ADB mainly supports the development of its members in the fields of infrastructure, energy, environmental protection, education and health through policy dialogue, loans, guarantees, technical assistance and grants.

The Asian Development Bank, which is jointly led by the United States and Japan. Its specific tasks are: to supervise and manipulate

1. To raise and provide funds for the economic development of developing member countries or regional members in the Asia-Pacific region;

2. Promote public and private capital investment in Asia-Pacific member countries;

3. Help member countries or regions in the Asia-Pacific region to coordinate their economic development policies, so as to make better use of their own resources to complement each other economically and promote the development of their foreign trade;

4. provide technical assistance to member States or regions in formulating and implementing development projects and plans;

5. Cooperate with the United Nations and its affiliated institutions, international non-profit organizations investing in the Asia-Pacific Development Fund, other international institutions and public and private entities in various countries in a way that the Asian Development Bank deems appropriate, and show them opportunities for investment and assistance;

6. Develop other activities and services in line with the purpose of the Asian Development Bank.