In an innovation-driven market environment, creative deviance in employees is increasingly observed in modern enterprises. Grounded in the proactive motivation framework, this study constructs a moderated mediation model to examine the influence of narcissistic employees on creative deviance through creativity-driven norm-breaking motives. Additionally, the moderating role of employees" sense of occupational calling is explored. Based on 375 survey responses from employees in innovation positions, it was found that narcissism significantly enhances creative deviance. Creativity-driven norm-breaking motives mediate the relationship between narcissism and creative deviance, while the sense of occupational calling positively moderates both the direct effect of narcissism on creativity-driven norm-breaking motives and the mediating effects. The findings provide insights into the literature on creative deviance and offer guidance on directing employee creative deviance.