Background: Performance Appraisal (PA) is  vital key in achieving future developments through establishing future goals  of organizations. Furthermore accurate, fair, effective and efficient performance appraisal plays a significant role in creating the aptitudes of staff nurses; making them feel that their work is appreciated ;  and increasing their level of  motivation and commitment toward the organization and the nursing profession. Aim: To determine the relationship between staff nurses' performance appraisal and their work engagement at Housh  Eissa Central Hospital. Design: A descriptive correlational research design was utilized to conduct this study. Setting: This study was conducted at Housh Eissa central hospital. Subjects:  staff nurses who were working in the previously mentioned setting(n=220). Tools: two tools were used. Tool one: “Performance Appraisal Questionnaire ". Tool two: “Job Engagement Scale ". Results: The results of this study revealed that overall mean percent score of total performance appraisal was high . Also, overall mean percent score of work engagement was high. Regarding relationship between performance appraisal and work engagement there was intermediate statistical significant differences between all levels of performance appraisal and all levels of work engagement (p=0.000). Conclusion: The finding of this study concluded that, there was a significant positive intermediate correlation between staff nurses' total performance appraisal and their work engagement, where p = 0.000 and r =  0.477. Recommendations: The outcome of appraising staff nurses' performance should be utilized to develop the aims, plans and future development .