With the expanding influence of China, the competition between the PRC and the US is intensifying. As an important regional organization in the Asia-Pacific region, ASEAN has close economic ties with both China and the U.S., and the conflict between China and the U.S. inevitably occurs in Southeast Asia, which has made ASEAN once again face direct competition from major powers. Under the current regional situation and to maintain the stability and development of the Southeast Asian region, ASEAN countries have chosen a more rational strategy of balancing the great powers in their foreign policy.