In seeking Korean unification led by South Korea, this article first analyzes China’s position on Korean unification, proves that China’s perception of a unified Korea is reflected in its Korean Peninsula policies, and predicts its future role. Specifically, this article looks into China’s perception of the Korean Peninsula’s strategic value in its Northeast Asian strategies given its changing relations with the U. S. Also, China’s basic position on Korean unification and its perception and plan on the process of unification and a unified Korea will be analyzed. Finally, this article examine how such a perception and a plan are reflected in China’s Korean Peninsula policies and project the future role of China in the process of Korean unification. In conclusion, although China supports an independent and peaceful Korean unification, it also prefers the status quo of the Korean Peninsula given uncertainty in the process of unification and its outcome. Also, it prefers a progressive unification over an early one. At a time when the U. S. is increasingly keeping China in check in economic and military terms in East Asia and China does not trust South Korea’s security strategies, China tries not to accept collapse of North Korea and South Korea-led unification. Even though China is expected to support establishment of a unified state on the Korean Peninsula which is friendly and cooperative to itself, it will be against a unified Korea under the influence of its competitors (the U. S. and Japan). Therefore, China is unlikely to facilitate Korean unification and considered to be able to have a decisive influence in delaying Korean unification and interrupting South Korea-led unification. This indicates that without dispelling China’s anxiety and gaining its cooperation, Korean unification is unlikely.