Work‐related resources can be positive antecedents of employee work engagement (WE) and creativity. Although trait emotional intelligence (EI) and social support may be crucial resources in nursing, their relationships with WE and creativity remain unclear. Hence, with special focus on the role of trait EI, we examined this relationship by applying the job demands‐resources (JD‐R) model. The participants were 489 eldercare nurses in Japan (female: n = 401; male: n = 88; age = 39.5 ± 11.0 years). The results showed positive associations between EI and the other studied variables. Furthermore, moderated mediation analyses revealed that higher trait EI enhanced the positive association among the triad of social support, WE, and creativity. The findings provide additional evidence that, in nurses, trait EI may be a noteworthy personal resource for creativity in the relationship between social support and WE.