Constitutions, laws and electoral systems of different countries give due concern to the organization of the procedures of the parliamentarian electoral process. The ultimate goal is to make such procedures an appropriate instrument for the creation of genuine parliamentary seats that faithfully reflect the will and aspirations of the nation. Therefore, the present thesis attempts to conduct a thorough investigation of such procedures in order to probe, whenever possible, to what extent the constitutional and legal guarantees are available. Such guarantees would ensure holding elections that are characterized by the integrity of their procedures and fairness of their results. Hence, this thesis comes under the title "Guarantees of the Integrity of the Parliamentary Election". Before delving into the details of these guarantees, the researcher believes it is important to dedicate an introductory chapter that provides a linguistic and technical definition of elections and highlights the legal, political, social and economic importance thereof. This is in addition to clarifying the legal characterization of the electoral right and the development of the exercise of this right throughout the history of the Sultanate. The thesis is then divided into separate chapters based on the chronological order of the electoral procedures. Accordingly, the thesis starts with the preliminary phase which is dedicated for indicating the pre-election guarantees including the substantive and procedural requirements of both rights of running for elections and casting votes in such elections. This is in addition to highlighting the role of electors' awareness in enhancing the electoral process in the country. In this respect, the thesis touches on the reasons for voter apathy and how to address this problem. The thesis also allocates a detailed section to discussing the various electoral systems applicable worldwide, analyzing the nature and the foundations of these systems and the reasons for their continuity. A comparison is drawn between these systems in order to identify the one that can be appropriately applied in the Sultanate. In this phase, the thesis examines the importance of serving justice in terms of dividing the electoral constituencies as one of the important guarantees for electoral integrity. Discussing the contemporary phase of the electoral process, the thesis attempts to identify the method through which the neutrality of the electoral monitoring bodies can be achieved. This is coupled with highlighting the importance of offering equal opportunities to candidates so that they can present their respective platforms. In this phase also the thesis outlines the principles governing the legality of the voting process, clarifies ح the advantages and disadvantages of e-voting as well as the rules governing its use. This phase concludes with explaining the procedures relevant to vote counting, the announcement of election results, and the factors helping in the transparency and integrity of such procedures. The thesis also highlights two important themes relevant to the post-election phase; namely challenging election results and the legal protection of the electoral procedures by monitoring the penalties relevant to electoral regularities. Having consulted the relevant sources, the researcher has exerted his utmost effort to highlight all the possible guarantees that help in conducting fair and transparent elections in each of the three phases mentioned above. The thesis adopts the comparative approach as it draws a comparison between the conclusions arrived at by the Egyptian legislator in terms of organizing the House of Representatives elections and the electoral procedures laid down by the Omani legislator for the Shura Council (Majlis A'Shura) elections. The thesis arrived at a host of conclusions and recommendations that serve the electoral process in the Sultanate of Oman, address the shortcomings of this process and highlight the distinctive features of the Omani experience in this regard. I give my thanks to Allah the Almighty and hope He has guided me to cover all aspects of this subject