This historiographical study examines the Russian Orthodox Mission in Beijing from 1715 to 1956, revealing its historical impact on Christianity in China and Sino–Russian cultural exchanges. The research explores how the Mission functioned not only as a religious entity but also influenced diplomatic ties and scholarly pursuits, as documented in both Chinese and Russian historiographies. This study utilizes contemporary sources, exploring Chinese narratives to re-evaluate historical perspectives, and portrays the Mission as a critical mediator in Sino–Russian relations. An examination of the historical context shows that the Mission has undergone a transformation over time. It has evolved from an influential ecclesiastical presence to a cultural and diplomatic agency unobtrusively entered into Chinese society. From the mid-18th to the early 20th century, the Mission adapted to the local environment by combining the transmission of religious doctrine with engagement in China’s political and cultural contexts. The article proposes a holistic interpretation of the Mission’s function, encompassing not only evangelism but also diplomatic engagements, and adding to the multifaceted discourse within Chinese cultural heritage. In summary, the article recommends exploring the enduring impact and historical complexities of the Russian Orthodox Mission as it is grounded in a broader framework of global movements. The research suggests that it may be beneficial to broaden the scope of historiographic narratives to encompass a diverse range of interdisciplinary studies that reflect the complexity of the Mission’s enduring impact and its role in shaping a shared global history.