Abstract Dominant debates about China’s growing presence in the Pacific Islands – through infrastructure, aid, trade, and investment – suggest that Chinese material power directly translates to influence and effective interference in Pacific states’ domestic and foreign affairs. These perspectives fail to clarify the causal link between Chinese economic statecraft and Pacific governments’ alignment with Beijing’s interests. They also deny Pacific people agency, overlooking how power relations are mediated by Pacific state and non-state actors operating across complex political and socio-economic structures. We challenge such rationalist conceptualisations of Chinese power by developing a constructivist taxonomy of power as presence (dormant capability), influence (socialisation), and interference (incentives), and applying it to the Melanesian subregion. We argue that Chinese power is not merely material, causal, and unidirectional. Chinese power can also (re)shape the identities and interests of Pacific elites and publics in a constitutive manner, potentially aligning their ideas about substantive norms, rules, and practices guiding their foreign relations with Chinese ‘core interests’ and perspectives on regional and global politics.