The Dengjue Si 等覺寺 (Dengjue Temple) may be regarded as the most significant Buddhist temple in the Menghua region of Yunnan Province during the Ming Dynasty (1368–1644). The building dates back to the Nanzhao Kingdom (738–902), underwent significant expansion during the Ming Dynasty, and housed the Menghua prefectural Buddhist registry in both the Ming and Qing (1644–1912) periods. The article analyses an important inscription—Chongxiu Dengjue si beiji 重修等覺寺碑記 (Stele of the restoration of the Dengjue Temple)—which meticulously records the historical context of the temple’s construction and restoration, the individuals involved, its architectural layout, and its rise and fall during the early to mid Ming Dynasty. What distinguishes this case is Menghua’s unique status as the reputed birthplace of the Nanzhao royal lineage. The Ming Dynasty conquered Yunnan in 1382, after which it introduced new Confucian ideologies and Buddhist practices, and gradually initiated a programme of social reconstruction. The Zuo family, who claimed descent from the Nanzhao royal family to legitimise and consolidate their authority as native officials (tusi 土司) in Menghua, became the temple’s principal benefactors. Within this context, the restoration of the Dengjue Temple was the result of collaborative efforts among the Ming government, local officials, regional elites, and monastic leaders. By tracing the temple’s history with reference to the roles of these actors, this study presents the Dengjue Temple as a microcosm of Ming frontier governance, religious adaptation, and cultural negotiation.