This study utilized data from 489 social workers in Guangzhou, China, to understand if there was a relationship between supervision, job demands, negative affect, and psychologic distress amongst Chinese social workers. Our results agreed with past findings from cross-cultural research, which have indicated that supervision reduces negative affect and psychological distress, while job demands increase them. The findings emphasize that supervision has a significant influence on Chinese social workers: supervision is a buffer factor to reduce negative affect and psychological distress for social workers who face high job demands