The purpose of this study is to examine the mission and education of the Korean Orthodox Church in the process of migration and settlement of Koreans in the Primorsky Krai from the 1860s to the 1910s and to discuss the historical background and sociocultural significance of it. This study summarizes the history of Korean maritime migrants in chronological order in the late 19th century. In this study, Russian, Russian-Korean bilingual and Korean translation used by the Russian Orthodox Church were discussed. At the time of the 19th century, the Russian Orthodox Church was the ideological background of the ruling Russian emigration. The Russian orthodox education that Koreans received was the first Western-style education acceptance of Koreans. The Orthodox Church conducted missions and education for Koreans through Russian language education, Korean-Russian bilingual education, and Korean-speaking Korean missions. Koreans accepted sophistication for survival and adjustment in Russia, or spiritual influence, and expressed enthusiasm for education. Russian Orthodox was bilingual, reflecting the dialect used by Koreans in Russia, and standard Korean of Seoul area. Although the educational environment was poor and the political situation was always changing rapidly, the role of the Orthodox Church was great in that it provided opportunities for Koreans to play an active role in the Primorsky Krai by finding out the talents of Koreans through education and by knowing their potentials themselves.