Service employees often face emotional job demands in customer interactions, requiring them to manage their emotions to meet job expectations. These demands can lead to stress reactions and harm well-being, but their impact on health-related behaviors has been largely overlooked. Drawing on stress coping model, we explore how and when daily emotional job demands influence eating behaviors after work. The study used experience sampling method (ESM) to collect daily data at three different time points over two consecutive weeks. The findings suggest that service employees tend to opt for distinct eating strategies to cope with the negative affect that they experienced from daily emotional job demand. Additionally, service employees with high body esteem and low impulsivity respectively consume more fruits and vegetables and less junk food to cope with negative moods when faced with emotional demands in their job.