The inauguration of the new administration of US early this year, led by Joe Biden, has important implications for changes in the situation on the Korean Peninsula. This is because amid the intensifying strategic conflict between the US and China, the direction of the US new administration's policy toward the public and North Korea can bring about various changes in the policy of East Asia and the Korean Peninsula. After the 8th party congress in North Korea held in January, the second period of Kim Jong-un's foreign policy is in effect. It is expected that the development of North Korea's strategy toward US and the progress of the North Korea's denuclearization negotiation as well as South Korea will act as a very big variable in the direction of the situation on the Korean Peninsula. Therefore, this article would like to analyze the changes in the situation on the Korean Peninsula in the future, focusing on the prospects of the Biden administration’s foreign policies.