Presently Performance Appraisal is considered more as an employee productivity enhancement technique than a control technique. The traditional annual performance appraisal has its own limitations and challenges. Ongoing feedback from management on the performance of employees in the periodic review is one of the procedures that the companies proffered to use. The present study investigated the impact of annual and the ongoing employee's performance reviewing practice in Oman Airports and its effect on employee's performance. The main objective of the present research was to study the factors effecting periodic review in Oman Airport. Amongst all the factors affecting the performance appraisal two main factors i.e., clarity and motivation were explored for their impact in the present study along with recommendation for the most effective periodic performance review method. In the present descriptive research data was collected form 100 ground staff employees using with the convenience sampling an online questionnaire. The results showed that both the factors motivation and clarity affect the period review in Oman Airport. The Periodic Performance Reviews showed a significant impact on employees' performance. Both the factors, i.e. Clarity and Motivation are found to be significant with the value of (.002) and (.001). The research provided useful insight into the impact of periodic performance review on the performance of the workers on the human resources management at the Oman Airport and other industries for the future Human Resources Planning.