China and the Republic of Korea (ROK) have experienced periods of conflict and cooperation since officially forging “partnership” relations in 1998. From a historical perspective, Korea was among the most willing participants of the Sinocentric tribute system and its underlying cultural hierarchy. Yet the 2003-2004 dispute over the ancient Koguryo kingdom’s identity marked the first major downturn in the China-ROK relationship since normalization. The rapid expansion of trade, at an average annual rate of 18 percent since 1992, has not prevented the two sides from fighting over political grievances. Most notably under the current Xi Jinping leadership, Beijing’s assertions of unprecedented friendship quickly turned into accusations of betrayal requiring economic punishment. Why and how did China’s policy toward South Korea shift so drastically after two decades of diplomatic normalization? To answer, we must focus on the expectations raised by China’s national identity for ties with South Korea.

This study examines the evolution of Chinese views of South Korea with a focus on elite and popular narratives since 2013. Despite increased interdependence, these narratives point to China’s increasingly fragile political ties with Asian partners. Most importantly, China’s growing weight facilitates its strategic combination of economic and discursive tools of diplomacy framed by national identity. Recent tensions over the U.S.-ROK military alliance displayed Beijing’s denial of direct economic retaliation under the cover of public hostility, conveniently blurring the lines between state-led and voluntary actions. By hardening the identity dimensions of conflict, such strategies may only have long-term counterproductive effects of constraining Beijing’s political influence at home and abroad.

The four sections below proceed as follows. First, I review two decades of China-ROK relations since the establishment of partnership ties in 1998. I identify two related trends: the intensification of political disputes despite trade, and China’s growing economic leverage in managing those disputes, keeping an eye on the role of national identity. Second, I assess the pessimistic turn in China’s domestic discourse on South Korea in the Xi Jinping period, using official, academic, and media sources. Third, I trace the interaction of elite and popular narratives, focusing on the 2016-2017 dispute over a U.S. missile defense system, Terminal High Altitude Area Defense (THAAD). I briefly extend the discussion to public clashes over Hong Kong in 2019 to underscore the enduring impact of China’s major power and domestic political identities on China-ROK relations. To conclude, I consider the trajectory of bilateral relations under the leadership of Xi Jinping and Moon Jae-in, including the domestic and foreign policy implications of nationalist discourse.