Despite the fruitful insights articulated by existing scholarship on internet censorship in China, the lack of a systematic overview of the field not only hinders reciprocal dialogue across different studies, but also prevents a reflective consideration of directions that could shed further light on the topic. To fill the gap, this study introduces the concept of “categorisation” as the analytical lens to scrutinise and synthesise the extant studies on censorship. It proposed two possible ways of categorising the current development of the topic: one is the macro–meso–micro level of analysis, and the other is about data and metadata. Our discussion addresses three contributions to studying internet censorship in China: the emerging computational methods for exploring censorship deletion practices on the micro level, the relevance of hard-to-observe, organisation-specific factors to understand the operationalisation of censorship, and method triangulation to strengthen the validity and reliability of studies of censorship phenomena.