 The Chinese thermal comfort dataset, established by seven participating institutions under Sien University of Architecture and Technology's leadership, comprises 41,977 sets of data collected from 49 cities across five climate zones in China over the past two decades. It has been instrumental in developing indoor thermal environment evaluation standards and energy codes in China and can have broader applications such as contributing to international thermal comfort dataset, modeling thermal comfort and adaptive behaviors, investigating regional differences in indoor thermal conditions, and examining occupants' thermal comfort responses. This article was authored by Lu Yang, Xing Kaijiao, Yongchao Zhai, and others.