Summary This article addresses the question of whether the emerging role of cities in diplomacy is a reflection of the diplomatic transformation in China, and what the distinctive features are of the diplomatic roles of cities within China's context. It argues that city diplomacy in China falls between club diplomacy and network diplomacy by exploring five aspects: the number of players, structures, forms, transparency and main purposes. Cities have developed their representation by serving as important agents in managing domestic and international situations, developed their communication channels by contributing in shaping China's neighbouring diplomacy and global partnerships, and developed their negotiation techniques by participating in reform of global governance system. The article concludes that the diplomatic role of cities in China is to consolidate the social foundation of relations between nations, promote the establishment of a new type of international relations, and promote a community of a shared future for mankind.