Communication research following contemporary social scientific approaches has existed in Hong Kong for 40 years. This article discusses communication research in Hong Kong from a sociology of knowledge perspective. It discusses how the basic characteristics and position of the Hong Kong society-in the midst of rapid political and social changes, being a densely populated international metropolitan, and being on the periphery of the Chinese society and international academic community-shaped communication studies and the ecology of academic production in Hong Kong. This essay points out that the main challenge of communication research in Hong Kong is the articulation between the macro and micro level analyses, and this is also the place where Hong Kong studies are most likely to contribute to communication research at large.