This research investigates the relationship between public service motivation (PSM) and employee performance (EP) within public sector organizations. Utilizing a mixed-methods approach, the study analyzes quantitative data from employee surveys and qualitative insights from interviews with public sector employees. The findings reveal a significant positive correlation between PSM and EP, indicating that employees who are motivated by a desire to serve the public tend to exhibit higher performance levels. Additionally, the research identifies key factors that enhance this relationship, including organizational support, leadership styles, and job design. The study highlights the importance of fostering a motivating work environment to improve employee performance in the public sector. Based on these findings, recommendations for future research and practical implications for public sector management are provided, emphasizing the need for targeted training programs and employee engagement strategies. This research contributes to the understanding of how intrinsic motivations can drive performance outcomes in public service settings.