This article critically reviews the relationship between social work and sociology in mainland China, focusing on the reconstruction period from 1988 to the present. The forced conjunction of social work and sociology, initiated by governments and sociologists, has created significant barriers for social work education, research, and practice. Given the proliferation of the field of social work in mainland China, and sociology’s substantial influence on social work, this article emphasizes the crucialness of discipline autonomy of social work and sheds lights on potential solutions including strengthening social work practices at multiple levels and making efforts in promoting social work science.