China’s foreign policy dynamics show an increasingly broad international strategy extended well beyond the conventional G2G engagements. Besides the formal diplomatic engagement via the Ministry of Foreign Affairs, there is an important but generally ignored aspect of its foreign policy: the Party-to-Party diplomacy that is directly conducted by the Communist Party of China (CPC).

This commentary highlights some of the observations from our research at CESIF, focusing on the mechanisms through which the CPC builds inter-party relations, interacts with actors beyond the government at partner countries, and facilitates its long-term strategic objectives.

The IDCPC

At the center of CPC’s party diplomacy is the International Department of CPC (IDCPC, or Zhonglianbu). The department was established in 1951 to manage the party’s ties exclusively with foreign communist and socialist movements. The department went through a strategic evolution during the post-Mao era under Deng Xiaoping, moving away from strict ideological boundaries toward a more pragmatic and globally oriented approach.

At present, the IDCPC has ties with over 600 political parties and organizations across more than 160 countries. The primary mechanism behind this outreach is trans-ideological engagement. The CPC does not limit its engagements with the left-leaning political forces, but with actors across the broader political spectrum. These include the ruling parties, opposition coalitions, nationalist factions, civil society groups, media, and beyond.

IDCPC maintains active relationships with both the incumbent and opposition leaders, creating a form of political hedging. If power shifts through elections in the partner states, China’s core bilateral interests remain protected because the ties with incoming political leadership would have already been established.

Governance Exchange as Soft Power

One of the most important tools that IDCPC organizes for inter-party outreach is the institutionalization of “governance exchange” (zhīguó lǐzhèng jīngyàn jiāoliú). The CPC frames its contemporary party diplomacy around sharing its pathway to national development, party-building, and governance practices.

The IDCPC presents the Chinese development model as a viable blueprint for Global South nations through high-level dialogues, study tours to China’s “rising” cities, and tailored workshops for international political cadres. Many top foreign politicians and rising political figures are regularly invited to seminars covering areas such as China’s experience in poverty alleviation, digital governance, state-led infrastructure development, and party discipline.

This mechanism subtly and gradually socializes the political elites from partner countries to CPC’s governance framework and practices. These approaches are often presented as a pragmatic toolkit for strengthening state stability and improving governance. Beijing is often able to build a normative alignment among the attendees without requiring formal alliances or ideological compliance.

Aligning Inter-Party Consensus with National Strategic Agendas

IDCPC’s party diplomacy does not operate in isolation. It closely connects with China’s larger economic and security goals. The IDCPC regularly organizes multilateral and bilateral Political Party Joint Consultation Mechanisms to rally political support for key initiatives, including the Belt and Road Initiative (BRI), the Global Development Initiative (GDI), and the Global Security Initiative (GSI).

In regions across South and Southeast Asia, these party consultations act as political channels through which inter-party understandings translate into policy support. When infrastructure projects encounter local resistance, face public scrutiny, or regulatory challenges, inter-party engagement help ease local political tensions. Additionally, party-level meetings often reinforce host-nation’s commitment to the "One China" principle and secure clear promises against anti-China political movements domestically. Additionally, inter-party consensus provides political backing for Chinese investments and help safeguard its strategic interests.

Multi-Layered Networking

CPC’s party diplomacy operates within a broader network of elite outreach and public opinion management. The IDCPC collaborates with think tanks and civil society organizations within China and the partner countries, creating channels that connect political leaders, lawmakers, media figures, researchers, and youth organizations. By hosting delegations of foreign journalists, party researchers, local activists, and influential figures for exchange visits, Beijing develops network of contacts and build localized advocacy networks. These networks help to strengthen narratives favorable to China and greater receptiveness of its foreign policy priorities.

Conclusion

Our research at CESIF suggests that examining Chinese foreign policy solely through traditional, ministry-level diplomacy misses an important dimension of Beijing's statecraft. The Chinese Communist Party’s political party diplomacy is a complex and multi-layered system that aims to build long-term political influence, engage foreign elites, and protect China’s national interests amid political transitions. For researchers, foreign policy analysts and partitioners, understanding the role IDCPC is essential for gaining a holistic picture on how China exerts influence in today’s international landscape.