Lian Xi's book Redeemed by Fire: the Rise of Popular Christianity in Modern China perceives the rise of Protestant unofficial house churches in rural China since the Reform and Opening as fruits of Chinese indigenous independent Christianity emerging in the early twentieth century, and employs the concept of popular Christianity to grasp the similarities between independent Christianity and house churches, namely, millennialism and Pentecostalism. However, failing to give consideration to the discontinuity brought about by the Cultural Revolution, this interpretation may have misrepresented rural house churches. Critically reviewing the continuity problem in the study of rural house churches in China, this article examines Lian Xi's concept of popular Christianity, indicating its directing question and weakness.