As governments implement organizational transformation by actively promoting downsizing to enhance organizational performance, public servants have been required to be more efficient, be responsible for more tasks, and do their jobs faster than before. Currently, public servants must spend additional time and effort to elevate administrative efficiency and immediately respond to civilians’ needs. However, there is a dearth of research on their actual workload. This study investigated the physical and mental effects of public servants’ workloads to identify whether emotional intelligence and job characteristics moderate the relationship between workload and emotional exhaustion. The results revealed that the participating public servants’ workload significantly and positively affected their emotional exhaustion, and both emotional intelligence and job characteristics exhibited partial moderating effects on the relationship between workload and emotional exhaustion. According to the analysis results, we suggest that government agencies address public servants’ work overload by implementing streamlined operating procedures, digitization, alternative employment arrangements, job rotation, and professional training, which can elevate work quality and occupational health.