Ice-and-snow tourism (IST) is a booming industry, and the development of its industrial clusters reflects its regional development quality. Taking 1985–2021 data for China's IST enterprises, this study used industrial cluster identification and industrial correlation analysis to explore the development of IST industrial clusters. The following results were obtained: (1) China's IST initially formed hotspot industrial clusters in Beijing-Tianjin-Hebei, the Northeast, the Yangtze River Delta, the Pearl River Delta, Chengdu-Chongqing, and Xinjiang regions. (2) Multiple industry forms failed to become deeply integrated into development, indicating a need to optimize the structure of the IST industrial chain. (3) The development environment of IST industrial clusters in each province showed differentiated characteristics. (4) IST industrial clustering was affected by both internal and external factors. External factors were grouped into climate and ice-and-snow resources, government policies and sports events, and economic fundamentals and market conditions. Internal factors included industrial association and industrial integration in the IST industrial cluster. Based on this study's identification of the characteristics of China's IST industrial clusters, countermeasures are proposed for their optimal development.