Abstract: Joseph Nye emphasized that all countries should pay attention to the status of political agenda and diplomatic strategy in solving international problems, while the international community is always ignoring the political and security demands of North Korea in solving the DPRK nuclear issue, and the "hard power", which is dominated by deterrence and sanction, forces North Korea to "abandon its core". Based on the analysis of "soft power", this paper argues that: The state of war on the Korean peninsula is the root the DPRK nuclear issue and the basic starting point of North Korea's "owning nuclear weapon" or "abandon nuclear weapon". Although both countries are committed to the denuclearization of the Korean peninsula, they differ significantly in their objectives, means and extent. To properly handle the differences between China and the DPRK on the nuclear issue is the key to future cooperation between the two countries. However, the DPRK’s active implementation of the resolutions of the "The Third Plenary Session of the 7th CPC Central Committee" still requires multilateral coordination and joint efforts of the international community.