On the basis of analyzing the changes in religious beliefs of the Hmong toward “Vàng Trứ Protestantism” (Tin Lành Vàng Trứ) before migrating to the Central Highlands (the case of Đăk Lăk province), the transformation in religious ceremonies and the shift within the religious community when they live in the new socio - economic conditions that are different from their homeland, this article aims to clarify the changes in the religious life of the Protestant Hmong in Đăk Lăk. Among the factor which affected to the changes in the religious life of the Protestant Hmong in Đăk Lăk, this article focuses on the strong and continuous impact of Protestantism that existed previously in the Central Highlands. Besides, it also clarifies that the Hmong mainly converted to Protestantism before migrating to the Central Highlands in general and to Đăk Lăk in particular, however, their faith was not very deep and vulnerable. | The changes in the religious life of the migrant Hmong by protestantism in Dăk Lăk, Vietnam