In this research, the researcher aims to study judicial control over appointment decisions in public sector with light of Civil Service Law in Sultanate of Oman. Issued by the Royal Decree No (120/2004), in comparison with the situation under the Egyptian Civil Service Law No (81-2016) through studying appointment rules in Public sector from the standpoint of the principles governing appointment process and the required qualifications upon which an individual is considered qualified as a public official, In addition to clarifying the appointment methods in public sector. The research also addresses the Administrative Justice role in overseeing the legitimacy of administrative appointment decisions in public sector jobs, and the extent of the administration responsibility regarding skipping in appointment. The research methodology requires dividing this research into three chapters. In the introductory chapter, the researcher discusses appointment regulations in public sector. In Chapter One, the researcher reviews cassation judge oversight over the correctness of appointment decisions. As for the second and last chapter, the researcher discusses state responsibility regarding appointment skipping decisions. The research is concluded by showing the researcher's most important results and recommendations, which he finds during studying this subject as we believe it is crucial to put them under consideration.