This article investigates how Chinese apparel companies have been able to acquire and upgrade knowledge over the last four decades. Based on a broad range of published sources and official data, it identifies the dominant firms that enabled the industry’s dramatic expansion during two distinct phases: export oriented in 1980–2005 and domestic market oriented in 2005–2020. Using the global value chains model, we analyze the varieties of knowledge needed during these two periods and how firms acquired it to boost their competitiveness.