This study focused on thermal comfort of subjects with radiant cooling workstation and desktop fan in hot-humid environments. Twenty-four human subjects participated in the experiments and reported their thermal sensation，thermal comfort，thermal acceptability and thermal preference in the hot-humid environments at 26，28 and 30 ℃ in an environmental chamber. The obtained results show that radiant cooling workstation and desktop fan significantly improved the thermal comfort of subjects in the hot-humid environments，but the effect was not obvious at 26 ℃. Subjects can still well maintain the neutral thermal sensation condition although indoor environment was as high as 30 ℃ and the relative humidity was 80%. Therefore，radiant cooling workstation and desktop fan can extend comfortable temperature range in summer. This study provides a new way for maintaining comfort in non-neutral environment and saving energy in buildings.